diff --git a/Makefile b/Makefile
index b0c60bb..a3c6013 100644
--- a/Makefile
+++ b/Makefile
@@ -7,15 +7,17 @@ MODPLUG_LIBS := -lmodplug
 TREMOR_LIBS  := -lvorbisidec -logg
 ZLIB_LIBS    := -lz
 
-CXXFLAGS += -O2 -Wall -MMD $(SDL_CFLAGS) -DUSE_MODPLUG -DUSE_TREMOR -DUSE_ZLIB
+CXXFLAGS += -O2 -Wall -MMD $(SDL_CFLAGS) -DUSE_MODPLUG -DUSE_STATIC_SCALER -DUSE_TREMOR -DUSE_ZLIB
 
 SRCS = collision.cpp cutscene.cpp decode_mac.cpp dynlib.cpp file.cpp fs.cpp game.cpp graphics.cpp main.cpp \
 	menu.cpp mixer.cpp mod_player.cpp ogg_player.cpp piege.cpp resource.cpp resource_aba.cpp \
 	resource_mac.cpp scaler.cpp screenshot.cpp seq_player.cpp \
 	sfx_player.cpp staticres.cpp systemstub_sdl.cpp unpack.cpp util.cpp video.cpp
 
-OBJS = $(SRCS:.cpp=.o)
-DEPS = $(SRCS:.cpp=.d)
+SCALERS := scalers/scaler_nearest.cpp scalers/scaler_tv2x.cpp scalers/scaler_xbrz.cpp scalers/xbrz/xbrz.cpp
+
+OBJS = $(SRCS:.cpp=.o) $(SCALERS:.cpp=.o)
+DEPS = $(SRCS:.cpp=.d) $(SCALERS:.cpp=.d)
 
 LIBS = $(SDL_LIBS) $(DL_LIBS) $(MODPLUG_LIBS) $(TREMOR_LIBS) $(ZLIB_LIBS)
 
diff --git a/README.txt b/README.txt
index 5211a89..a65fe8f 100644
--- a/README.txt
+++ b/README.txt
@@ -1,6 +1,6 @@
 
 REminiscence README
-Release version: 0.4.2
+Release version: 0.4.3
 -------------------------------------------------------------------------------
 
 
@@ -43,7 +43,7 @@ These paths can be changed using command line switches :
     --savepath=PATH   Path to save files (default '.')
     --levelnum=NUM    Level to start from (default '0')
     --fullscreen      Fullscreen display
-    --widescreen      16:9 display
+    --widescreen=MODE 16:9 display
     --scaler=NAME@X   Graphics scaler (default 'scale@3')
     --language=LANG   Language (fr,en,de,sp,it,jp)
 
@@ -52,6 +52,10 @@ addition to a scaling factor. External scalers are also supported, the suffix
 shall be used as the name. Eg. If you have scaler_xbrz.dll, you can pass
 '--scaler xbrz@2' to use that algorithm with a doubled window size (512x448).
 
+The widescreen option accepts two modes :
+    'adjacent' : left and right rooms bitmaps will be drawn (default)
+    'mirror' : the current room bitmap will be drawn mirrored
+
 In-game hotkeys :
 
     Arrow Keys      move Conrad
@@ -60,11 +64,12 @@ In-game hotkeys :
     Escape          display the options
     Backspace       display the inventory
     Alt Enter       toggle windowed/fullscreen mode
-    Alt + and -     change video scaler
+    Alt + and -     increase or decrease game screen scaler factor
     Alt S           write screenshot as .tga
     Ctrl S          save game state
     Ctrl L          load game state
     Ctrl + and -    change game state slot
+    Function Keys   change game screen scaler
 
 Debug hotkeys :
 
diff --git a/cutscene.cpp b/cutscene.cpp
index 3b1869d..7d7cea8 100644
--- a/cutscene.cpp
+++ b/cutscene.cpp
@@ -938,7 +938,12 @@ void Cutscene::op_handleKeys() {
 		_cmdPtr = getCommandData();
 		n = READ_BE_UINT16(_cmdPtr + n * 2 + 2);
 	}
-	_cmdPtr = _cmdPtrBak = getCommandData() + n + _startOffset;
+	if (_res->isMac()) {
+		_cmdPtr = getCommandData();
+		_baseOffset = READ_BE_UINT16(_cmdPtr + 2 + n * 2);
+		n = 0;
+	}
+	_cmdPtr = _cmdPtrBak = getCommandData() + n + _baseOffset;
 }
 
 uint8_t Cutscene::fetchNextCmdByte() {
@@ -951,7 +956,7 @@ uint16_t Cutscene::fetchNextCmdWord() {
 	return i;
 }
 
-void Cutscene::mainLoop(uint16_t offset) {
+void Cutscene::mainLoop(uint16_t num) {
 	_frameDelay = 5;
 	_tstamp = _stub->getTimeStamp();
 
@@ -963,14 +968,20 @@ void Cutscene::mainLoop(uint16_t offset) {
 	_newPal = false;
 	_hasAlphaColor = false;
 	const uint8_t *p = getCommandData();
-	if (offset != 0) {
-		offset = READ_BE_UINT16(p + (offset + 1) * 2);
+	int offset = 0;
+	if (_res->isMac()) {
+		// const int count = READ_BE_UINT16(p);
+		_baseOffset = READ_BE_UINT16(p + 2 + num * 2);
+	} else {
+		if (num != 0) {
+			offset = READ_BE_UINT16(p + 2 + num * 2);
+		}
+		_baseOffset = (READ_BE_UINT16(p) + 1) * 2;
 	}
-	_startOffset = (READ_BE_UINT16(p) + 1) * 2;
 	_varKey = 0;
-	_cmdPtr = _cmdPtrBak = p + _startOffset + offset;
+	_cmdPtr = _cmdPtrBak = p + _baseOffset + offset;
 	_polPtr = getPolygonData();
-	debug(DBG_CUT, "_startOffset = %d offset = %d", _startOffset, offset);
+	debug(DBG_CUT, "_baseOffset = %d offset = %d", _baseOffset, offset);
 
 	while (!_stub->_pi.quit && !_interrupted && !_stop) {
 		uint8_t op = fetchNextCmdByte();
diff --git a/cutscene.h b/cutscene.h
index e5d5fc9..972d962 100644
--- a/cutscene.h
+++ b/cutscene.h
@@ -71,7 +71,7 @@ struct Cutscene {
 	uint8_t _frameDelay;
 	bool _newPal;
 	uint8_t _palBuf[0x20 * 2];
-	uint16_t _startOffset;
+	uint16_t _baseOffset;
 	bool _creditsSequence;
 	uint32_t _rotMat[4];
 	uint8_t _primitiveColor;
@@ -139,7 +139,7 @@ struct Cutscene {
 
 	uint8_t fetchNextCmdByte();
 	uint16_t fetchNextCmdWord();
-	void mainLoop(uint16_t offset);
+	void mainLoop(uint16_t num);
 	bool load(uint16_t cutName);
 	void unload();
 	void prepare();
diff --git a/game.cpp b/game.cpp
index a75175c..ea67cf3 100644
--- a/game.cpp
+++ b/game.cpp
@@ -14,7 +14,7 @@
 #include "unpack.h"
 #include "util.h"
 
-Game::Game(SystemStub *stub, FileSystem *fs, const char *savePath, int level, ResourceType ver, Language lang)
+Game::Game(SystemStub *stub, FileSystem *fs, const char *savePath, int level, ResourceType ver, Language lang, WidescreenMode widescreenMode)
 	: _cut(&_res, stub, &_vid), _menu(&_res, stub, &_vid),
 	_mix(fs, stub), _res(fs, ver, lang), _seq(stub, &_mix), _vid(&_res, stub),
 	_stub(stub), _fs(fs), _savePath(savePath) {
@@ -23,6 +23,7 @@ Game::Game(SystemStub *stub, FileSystem *fs, const char *savePath, int level, Re
 	_skillLevel = _menu._skill = kSkillNormal;
 	_currentLevel = _menu._level = level;
 	_demoBin = -1;
+	_widescreenMode = widescreenMode;
 }
 
 void Game::run() {
@@ -63,6 +64,12 @@ void Game::run() {
 	_mix.init();
 	_mix._mod._isAmiga = _res.isAmiga();
 
+	if (_res.isMac()) {
+		displayTitleScreenMac(Menu::kMacTitleScreen_MacPlay);
+		if (!_stub->_pi.quit) {
+			displayTitleScreenMac(Menu::kMacTitleScreen_Presage);
+		}
+	}
 	playCutscene(0x40);
 	playCutscene(0x0D);
 
@@ -86,7 +93,7 @@ void Game::run() {
 		break;
 	}
 
-	bool presentMenu = (_res._type == kResourceTypeAmiga) || (_res._type == kResourceTypeDOS && _res.fileExists("MENU1.MAP"));
+	bool presentMenu = ((_res._type != kResourceTypeDOS) || _res.fileExists("MENU1.MAP"));
 	while (!_stub->_pi.quit) {
 		if (presentMenu) {
 			_mix.playMusic(1);
@@ -121,7 +128,7 @@ void Game::run() {
 				_stub->setScreenSize(Video::GAMESCREEN_W, Video::GAMESCREEN_H);
 				break;
 			case kResourceTypeMac:
-				// TODO:
+				displayTitleScreenMac(Menu::kMacTitleScreen_Flashback);
 				break;
 			}
 			if (_stub->_pi.quit) {
@@ -172,10 +179,10 @@ void Game::run() {
 
 void Game::displayTitleScreenAmiga() {
 	static const char *FILENAME = "present.cmp";
-	_res.load_CMP_menu(FILENAME, _res._scratchBuffer);
+	_res.load_CMP_menu(FILENAME);
 	static const int kW = 320;
 	static const int kH = 224;
-	uint8_t *buf = (uint8_t *)calloc(kW * kH, 1);
+	uint8_t *buf = (uint8_t *)calloc(1, kW * kH);
 	if (!buf) {
 		error("Failed to allocate screen buffer w=%d h=%d", kW, kH);
 	}
@@ -190,13 +197,13 @@ void Game::displayTitleScreenAmiga() {
 		_stub->setPaletteEntry(i, &c);
 	}
 	_stub->setScreenSize(kW, kH);
+	// fill with black
 	_stub->copyRect(0, 0, kW, kH, buf, kW);
 	_stub->updateScreen(0);
 	_vid.AMIGA_decodeCmp(_res._scratchBuffer + 6, buf);
-	free(buf);
 	int h = 0;
 	while (1) {
-		if (h < kH / 2) {
+		if (h <= kH / 2) {
 			const int y = kH / 2 - h;
 			_stub->copyRect(0, y, kW, h * 2, buf, kW);
 			_stub->updateScreen(0);
@@ -212,6 +219,72 @@ void Game::displayTitleScreenAmiga() {
 		}
 		_stub->sleep(30);
 	}
+	free(buf);
+}
+
+void Game::displayTitleScreenMac(int num) {
+	const int w = 512;
+	int h = 384;
+	int clutBaseColor = 0;
+	switch (num) {
+	case Menu::kMacTitleScreen_MacPlay:
+		break;
+	case Menu::kMacTitleScreen_Presage:
+		clutBaseColor = 12;
+		break;
+	case Menu::kMacTitleScreen_Flashback:
+	case Menu::kMacTitleScreen_LeftEye:
+	case Menu::kMacTitleScreen_RightEye:
+		h = 448;
+		break;
+	case Menu::kMacTitleScreen_Controls:
+		break;
+	}
+	DecodeBuffer buf;
+	memset(&buf, 0, sizeof(buf));
+	buf.ptr = _vid._frontLayer;
+	buf.pitch = buf.w = _vid._w;
+	buf.h = _vid._h;
+	buf.x = (_vid._w - w) / 2;
+	buf.y = (_vid._h - h) / 2;
+	buf.setPixel = Video::MAC_drawBuffer;
+	memset(_vid._frontLayer, 0, _vid._layerSize);
+	_res.MAC_loadTitleImage(num, &buf);
+	for (int i = 0; i < 12; ++i) {
+		Color palette[16];
+		_res.MAC_copyClut16(palette, 0, clutBaseColor + i);
+		const int basePaletteColor = i * 16;
+		for (int j = 0; j < 16; ++j) {
+			_stub->setPaletteEntry(basePaletteColor + j, &palette[j]);
+		}
+	}
+	if (num == Menu::kMacTitleScreen_MacPlay) {
+		Color palette[16];
+		_res.MAC_copyClut16(palette, 0, 56);
+		for (int i = 12; i < 16; ++i) {
+			const int basePaletteColor = i * 16;
+			for (int j = 0; j < 16; ++j) {
+				_stub->setPaletteEntry(basePaletteColor + j, &palette[j]);
+			}
+		}
+	} else if (num == Menu::kMacTitleScreen_Presage) {
+		Color c;
+		c.r = c.g = c.b = 0;
+		_stub->setPaletteEntry(0, &c);
+	}
+	_stub->copyRect(0, 0, _vid._w, _vid._h, _vid._frontLayer, _vid._w);
+	_stub->updateScreen(0);
+	while (1) {
+		_stub->processEvents();
+		if (_stub->_pi.quit) {
+			break;
+		}
+		if (_stub->_pi.enter) {
+			_stub->_pi.enter = false;
+			break;
+		}
+		_stub->sleep(30);
+	}
 }
 
 void Game::resetGameState() {
@@ -496,8 +569,12 @@ bool Game::handleConfigPanel() {
 
 	switch (_res._type) {
 	case kResourceTypeAmiga:
-		// TODO
-		return true;
+		for (int i = 0; i < h; ++i) {
+			for (int j = 0; j < w; ++j) {
+				_vid.fillRect(Video::CHAR_W * (x + j), Video::CHAR_H * (y + i), Video::CHAR_W, Video::CHAR_H, 0xE2);
+			}
+		}
+		break;
 	case kResourceTypeDOS:
 		// top-left rounded corner
 		_vid.PC_drawChar(0x81, y, x, kUseDefaultFont);
@@ -543,7 +620,7 @@ bool Game::handleConfigPanel() {
 			_vid.MAC_drawStringChar(_vid._frontLayer, _vid._w, Video::CHAR_W * x,       Video::CHAR_H * (y + i), _res._fnt, _vid._charFrontColor, 0x86);
 			_vid.MAC_drawStringChar(_vid._frontLayer, _vid._w, Video::CHAR_W * (x + w), Video::CHAR_H * (y + i), _res._fnt, _vid._charFrontColor, 0x87);
 			for (int j = 1; j < w; ++j) {
-				_vid.MAC_fillRect(Video::CHAR_W * (x + j), Video::CHAR_H * (y + i), Video::CHAR_W, Video::CHAR_H, 0xE2);
+				_vid.fillRect(Video::CHAR_W * (x + j), Video::CHAR_H * (y + i), Video::CHAR_W, Video::CHAR_H, 0xE2);
 			}
 		}
 		break;
@@ -1523,7 +1600,7 @@ void Game::loadLevelMap() {
 		_vid.AMIGA_decodeLev(_currentLevel, _currentRoom);
 		break;
 	case kResourceTypeDOS:
-		if (_stub->hasWidescreen()) { // draw adjacent rooms
+		if (_stub->hasWidescreen() && _widescreenMode == kWidescreenAdjacentRooms) {
 			const int leftRoom = _res._ctData[CT_LEFT_ROOM + _currentRoom];
 			if (leftRoom > 0 && hasLevelMap(_currentLevel, leftRoom)) {
 				_vid.PC_decodeMap(_currentLevel, leftRoom);
@@ -1540,6 +1617,9 @@ void Game::loadLevelMap() {
 			}
 		}
 		_vid.PC_decodeMap(_currentLevel, _currentRoom);
+		if (_stub->hasWidescreen() && _widescreenMode == kWidescreenMirrorRoom) {
+			_stub->copyRectMirrorBorders(Video::GAMESCREEN_W, Video::GAMESCREEN_H, _vid._backLayer);
+		}
 		break;
 	case kResourceTypeMac:
 		_vid.MAC_decodeMap(_currentLevel, _currentRoom);
diff --git a/game.h b/game.h
index ee13086..410510d 100644
--- a/game.h
+++ b/game.h
@@ -86,11 +86,13 @@ struct Game {
 	bool _saveStateCompleted;
 	bool _endLoop;
 	uint32_t _frameTimestamp;
+	WidescreenMode _widescreenMode;
 
-	Game(SystemStub *, FileSystem *, const char *savePath, int level, ResourceType ver, Language lang);
+	Game(SystemStub *, FileSystem *, const char *savePath, int level, ResourceType ver, Language lang, WidescreenMode widescreenMode);
 
 	void run();
 	void displayTitleScreenAmiga();
+	void displayTitleScreenMac(int num);
 	void resetGameState();
 	void mainLoop();
 	void updateTiming();
diff --git a/intern.h b/intern.h
index 9efae06..7959e20 100644
--- a/intern.h
+++ b/intern.h
@@ -100,6 +100,12 @@ enum Skill {
 	kSkillExpert,
 };
 
+enum WidescreenMode {
+	kWidescreenNone,
+	kWidescreenAdjacentRooms,
+	kWidescreenMirrorRoom,
+};
+
 struct Options {
 	bool bypass_protection;
 	bool enable_password_menu;
diff --git a/main.cpp b/main.cpp
index f400d0b..baf733a 100644
--- a/main.cpp
+++ b/main.cpp
@@ -22,7 +22,7 @@ static const char *USAGE =
 	"  --savepath=PATH   Path to save files (default '.')\n"
 	"  --levelnum=NUM    Start to level, bypass introduction\n"
 	"  --fullscreen      Fullscreen display\n"
-	"  --widescreen      16:9 display\n"
+	"  --widescreen=MODE 16:9 display\n"
 	"  --scaler=NAME@X   Graphics scaler (default 'scale@3')\n"
 	"  --language=LANG   Language (fr,en,de,sp,it,jp)\n"
 ;
@@ -74,6 +74,7 @@ static Language detectLanguage(FileSystem *fs) {
 			return table[i].language;
 		}
 	}
+	warning("Unable to detect language, defaults to English");
 	return LANG_EN;
 }
 
@@ -126,12 +127,17 @@ static void initOptions() {
 				}
 				if (*p) {
 					const bool value = (*p == 't' || *p == 'T' || *p == '1');
+					bool foundOption = false;
 					for (int i = 0; opts[i].name; ++i) {
 						if (strncmp(buf, opts[i].name, strlen(opts[i].name)) == 0) {
 							*opts[i].value = value;
+							foundOption = true;
 							break;
 						}
 					}
+					if (!foundOption) {
+						warning("Unhandled option '%s', ignoring", buf);
+					}
 				}
 			}
 		}
@@ -143,10 +149,16 @@ static void parseScaler(char *name, ScalerParameters *scalerParameters) {
 	struct {
 		const char *name;
 		int type;
+		const Scaler *scaler;
 	} scalers[] = {
-		{ "point", kScalerTypePoint },
-		{ "linear", kScalerTypeLinear },
-		{ "scale", kScalerTypeInternal },
+		{ "point", kScalerTypePoint, 0 },
+		{ "linear", kScalerTypeLinear, 0 },
+		{ "scale", kScalerTypeInternal, &_internalScaler },
+#ifdef USE_STATIC_SCALER
+		{ "nearest", kScalerTypeInternal, &scaler_nearest },
+		{ "tv2x", kScalerTypeInternal, &scaler_tv2x },
+		{ "xbrz", kScalerTypeInternal, &scaler_xbrz },
+#endif
 		{ 0, -1 }
 	};
 	bool found = false;
@@ -157,6 +169,7 @@ static void parseScaler(char *name, ScalerParameters *scalerParameters) {
 	for (int i = 0; scalers[i].name; ++i) {
 		if (strcmp(scalers[i].name, name) == 0) {
 			scalerParameters->type = (ScalerType)scalers[i].type;
+			scalerParameters->scaler = scalers[i].scaler;
 			found = true;
 			break;
 		}
@@ -179,12 +192,30 @@ static void parseScaler(char *name, ScalerParameters *scalerParameters) {
 	}
 }
 
+static WidescreenMode parseWidescreen(const char *mode) {
+	static const struct {
+		const char *name;
+		WidescreenMode mode;
+	} modes[] = {
+		{ "adjacent", kWidescreenAdjacentRooms },
+		{ "mirror", kWidescreenMirrorRoom },
+		{ 0, kWidescreenNone },
+	};
+	for (int i = 0; modes[i].name; ++i) {
+		if (strcasecmp(modes[i].name, mode) == 0) {
+			return modes[i].mode;
+		}
+	}
+	warning("Unhandled widecreen mode '%s', defaults to adjacent rooms", mode);
+	return kWidescreenAdjacentRooms; // default value
+}
+
 int main(int argc, char *argv[]) {
 	const char *dataPath = "DATA";
 	const char *savePath = ".";
 	int levelNum = 0;
 	bool fullscreen = false;
-	bool widescreen = false;
+	WidescreenMode widescreen = kWidescreenNone;
 	ScalerParameters scalerParameters = ScalerParameters::defaults();
 	int forcedLanguage = -1;
 	if (argc == 2) {
@@ -202,7 +233,7 @@ int main(int argc, char *argv[]) {
 			{ "fullscreen", no_argument,       0, 4 },
 			{ "scaler",     required_argument, 0, 5 },
 			{ "language",   required_argument, 0, 6 },
-			{ "widescreen", no_argument,       0, 7 },
+			{ "widescreen", required_argument, 0, 7 },
 			{ 0, 0, 0, 0 }
 		};
 		int index;
@@ -248,7 +279,7 @@ int main(int argc, char *argv[]) {
 			}
 			break;
 		case 7:
-			widescreen = true;
+			widescreen = parseWidescreen(optarg);
 			break;
 		default:
 			printf(USAGE, argv[0]);
@@ -265,8 +296,8 @@ int main(int argc, char *argv[]) {
 	}
 	const Language language = (forcedLanguage == -1) ? detectLanguage(&fs) : (Language)forcedLanguage;
 	SystemStub *stub = SystemStub_SDL_create();
-	Game *g = new Game(stub, &fs, savePath, levelNum, (ResourceType)version, language);
-	stub->init(g_caption, g->_vid._w, g->_vid._h, fullscreen, widescreen, &scalerParameters);
+	Game *g = new Game(stub, &fs, savePath, levelNum, (ResourceType)version, language, widescreen);
+	stub->init(g_caption, g->_vid._w, g->_vid._h, fullscreen, widescreen != kWidescreenNone, &scalerParameters);
 	g->run();
 	delete g;
 	stub->destroy();
diff --git a/menu.cpp b/menu.cpp
index 5fed812..349d6bf 100644
--- a/menu.cpp
+++ b/menu.cpp
@@ -68,6 +68,11 @@ void Menu::drawString2(const char *str, int16_t y, int16_t x) {
 	int h = Video::CHAR_H;
 	int len = 0;
 	switch (_res->_type) {
+	case kResourceTypeAmiga:
+		for (; str[len]; ++len) {
+			_vid->AMIGA_drawStringChar(_vid->_frontLayer, _vid->_w, Video::CHAR_W * (x + len), Video::CHAR_H * y, _res->_fnt, _vid->_charFrontColor, (uint8_t)str[len]);
+		}
+		break;
 	case kResourceTypeDOS:
 		for (; str[len]; ++len) {
 			_vid->PC_drawChar((uint8_t)str[len], y, x + len, true);
@@ -77,8 +82,6 @@ void Menu::drawString2(const char *str, int16_t y, int16_t x) {
 		for (; str[len]; ++len) {
 			_vid->MAC_drawStringChar(_vid->_frontLayer, _vid->_w, Video::CHAR_W * (x + len), Video::CHAR_H * y, _res->_fnt, _vid->_charFrontColor, (uint8_t)str[len]);
 		}
-		w *= _vid->_layerScale;
-		h *= _vid->_layerScale;
 		break;
 	}
 	_vid->markBlockAsDirty(x * w, y * h, len * w, h);
diff --git a/menu.h b/menu.h
index 5974198..bbf0d58 100644
--- a/menu.h
+++ b/menu.h
@@ -30,6 +30,14 @@ struct Menu {
 		SCREEN_LEVEL,
 		SCREEN_INFO
 	};
+	enum {
+		kMacTitleScreen_MacPlay = 1,
+		kMacTitleScreen_Presage = 2,
+		kMacTitleScreen_Flashback = 3,
+		kMacTitleScreen_LeftEye = 4,
+		kMacTitleScreen_RightEye = 5,
+		kMacTitleScreen_Controls = 6
+	};
 
 	enum {
 		EVENTS_DELAY = 80
diff --git a/resource.cpp b/resource.cpp
index 247f627..d9b2d75 100644
--- a/resource.cpp
+++ b/resource.cpp
@@ -21,7 +21,7 @@ Resource::Resource(FileSystem *fs, ResourceType ver, Language lang) {
 	_mac = 0;
 	_readUint16 = (_type == kResourceTypeDOS) ? READ_LE_UINT16 : READ_BE_UINT16;
 	_readUint32 = (_type == kResourceTypeDOS) ? READ_LE_UINT32 : READ_BE_UINT32;
-	_scratchBuffer = (uint8_t *)malloc(320 * 224 + 1024);
+	_scratchBuffer = (uint8_t *)malloc(kScratchBufferSize);
 	if (!_scratchBuffer) {
 		error("Unable to allocate temporary memory buffer");
 	}
@@ -36,9 +36,9 @@ Resource::Resource(FileSystem *fs, ResourceType ver, Language lang) {
 
 Resource::~Resource() {
 	clearLevelRes();
+	MAC_unloadLevelData();
 	free(_fnt);
-	free(_icn); _icn = 0;
-	_icnLen = 0;
+	free(_icn);
 	free(_tab);
 	free(_spc);
 	free(_spr1);
@@ -268,7 +268,7 @@ void Resource::load_PAL_menu(const char *fileName, uint8_t *dstPtr) {
 	error("Cannot load '%s'", _entryName);
 }
 
-void Resource::load_CMP_menu(const char *fileName, uint8_t *dstPtr) {
+void Resource::load_CMP_menu(const char *fileName) {
 	File f;
 	if (f.open(fileName, "rb", _fs)) {
 		const uint32_t size = f.readUint32BE();
@@ -277,7 +277,7 @@ void Resource::load_CMP_menu(const char *fileName, uint8_t *dstPtr) {
 			error("Failed to allocate CMP temporary buffer");
 		}
 		f.read(tmp, size);
-		if (!delphine_unpack(dstPtr, tmp, size)) {
+		if (!delphine_unpack(_scratchBuffer, kScratchBufferSize, tmp, size)) {
 			error("Bad CRC for %s", fileName);
 		}
                 free(tmp);
@@ -668,7 +668,7 @@ void Resource::load(const char *objName, int objType, const char *ext) {
 					_pal = dat;
 					break;
 				case OT_CT:
-					if (!delphine_unpack((uint8_t *)_ctData, dat, size)) {
+					if (!delphine_unpack((uint8_t *)_ctData, sizeof(_ctData), dat, size)) {
 						error("Bad CRC for '%s'", _entryName);
 					}
 					free(dat);
@@ -736,7 +736,7 @@ void Resource::load_CT(File *pf) {
 		error("Unable to allocate CT buffer");
 	} else {
 		pf->read(tmp, len);
-		if (!delphine_unpack((uint8_t *)_ctData, tmp, len)) {
+		if (!delphine_unpack((uint8_t *)_ctData, sizeof(_ctData), tmp, len)) {
 			error("Bad CRC for collision data");
 		}
 		free(tmp);
@@ -936,7 +936,7 @@ void Resource::load_OBC(File *f) {
 	}
 	f->seek(4);
 	f->read(packedData, packedSize);
-	if (!delphine_unpack(tmp, packedData, packedSize)) {
+	if (!delphine_unpack(tmp, unpackedSize, packedData, packedSize)) {
 		error("Bad CRC for compressed object data");
 	}
 	free(packedData);
@@ -1153,7 +1153,7 @@ void Resource::load_CMP(File *pf) {
 	}
 	if (data[0].packedSize == data[0].size) {
 		memcpy(_pol, tmp + data[0].offset, data[0].packedSize);
-	} else if (!delphine_unpack(_pol, tmp + data[0].offset, data[0].packedSize)) {
+	} else if (!delphine_unpack(_pol, data[0].size, tmp + data[0].offset, data[0].packedSize)) {
 		error("Bad CRC for cutscene polygon data");
 	}
 	_cmd = (uint8_t *)malloc(data[1].size);
@@ -1162,7 +1162,7 @@ void Resource::load_CMP(File *pf) {
 	}
 	if (data[1].packedSize == data[1].size) {
 		memcpy(_cmd, tmp + data[1].offset, data[1].packedSize);
-	} else if (!delphine_unpack(_cmd, tmp + data[1].offset, data[1].packedSize)) {
+	} else if (!delphine_unpack(_cmd, data[1].size, tmp + data[1].offset, data[1].packedSize)) {
 		error("Bad CRC for cutscene command data");
 	}
 	free(tmp);
@@ -1278,7 +1278,7 @@ void Resource::load_SGD(File *f) {
 	if (!_sgd) {
 		error("Unable to allocate SGD buffer");
 	}
-	if (!delphine_unpack(_sgd, tmp, len)) {
+	if (!delphine_unpack(_sgd, size, tmp, len)) {
 		error("Bad CRC for SGD data");
 	}
 	free(tmp);
@@ -1310,12 +1310,12 @@ void Resource::load_SPM(File *f) {
 		if (!_spr1) {
 			error("Unable to allocate SPR1 buffer");
 		}
-		if (!delphine_unpack(_spr1, tmp, len)) {
+		if (!delphine_unpack(_spr1, size, tmp, len)) {
 			error("Bad CRC for SPM data");
 		}
 	} else {
 		assert(size <= sizeof(_sprm));
-		if (!delphine_unpack(_sprm, tmp, len)) {
+		if (!delphine_unpack(_sprm, sizeof(_sprm), tmp, len)) {
 			error("Bad CRC for SPM data");
 		}
 	}
@@ -1391,7 +1391,7 @@ uint8_t *Resource::loadBankData(uint16_t num) {
 	} else {
 		assert(dataOffset > 4);
 		assert(size == (int)READ_BE_UINT32(data - 4));
-		if (!delphine_unpack(_bankDataHead, data, 0)) {
+		if (!delphine_unpack(_bankDataHead, _bankDataTail - _bankDataHead, data, 0)) {
 			error("Bad CRC for bank data %d", num);
 		}
 	}
diff --git a/resource.h b/resource.h
index 91f89a5..29db4c3 100644
--- a/resource.h
+++ b/resource.h
@@ -112,7 +112,8 @@ struct Resource {
 
 	enum {
 		kPaulaFreq = 3546897,
-		kClutSize = 1024
+		kClutSize = 1024,
+		kScratchBufferSize = 320 * 224 + 1024
 	};
 
 	static const uint16_t _voicesOffsetsTable[];
@@ -187,6 +188,7 @@ struct Resource {
 
 	bool isDOS()   const { return _type == kResourceTypeDOS; }
 	bool isAmiga() const { return _type == kResourceTypeAmiga; }
+	bool isMac()   const { return _type == kResourceTypeMac; }
 
 	bool fileExists(const char *filename);
 
@@ -196,7 +198,7 @@ struct Resource {
 	void load_SPL_demo();
 	void load_MAP_menu(const char *fileName, uint8_t *dstPtr);
 	void load_PAL_menu(const char *fileName, uint8_t *dstPtr);
-	void load_CMP_menu(const char *fileName, uint8_t *dstPtr);
+	void load_CMP_menu(const char *fileName);
 	void load_SPR_OFF(const char *fileName, uint8_t *sprData);
 	void load_CINE();
 	void free_CINE();
diff --git a/resource_aba.cpp b/resource_aba.cpp
index f1a55bf..b76ef21 100644
--- a/resource_aba.cpp
+++ b/resource_aba.cpp
@@ -74,7 +74,7 @@ uint8_t *ResourceAba::loadEntry(const char *name, uint32_t *size) {
 				free(tmp);
 				return 0;
 			}
-			const bool ret = delphine_unpack(dst, tmp, e->compressedSize);
+			const bool ret = delphine_unpack(dst, e->size, tmp, e->compressedSize);
 			if (!ret) {
 				error("Bad CRC for '%s'", name);
 			}
diff --git a/rs.cfg b/rs.cfg
index 4202fe5..3972c13 100644
--- a/rs.cfg
+++ b/rs.cfg
@@ -16,7 +16,7 @@ use_tiledata=false
 # display text instead of playing the polygon cutscenes
 use_text_cutscenes=false
 
-# enable playback of .SEQ cutscenes (use polygonal if false)
+# enable playback of .SEQ cutscenes (always use polygon cutscenes if false)
 use_seq_cutscenes=true
 
 # enable playback of 'ASC' cutscene
diff --git a/scaler.h b/scaler.h
index 5070c69..46f6603 100644
--- a/scaler.h
+++ b/scaler.h
@@ -31,4 +31,10 @@ extern const Scaler _internalScaler;
 
 const Scaler *findScaler(const char *name);
 
+#ifdef USE_STATIC_SCALER
+extern const Scaler scaler_nearest;
+extern const Scaler scaler_tv2x;
+extern const Scaler scaler_xbrz;
+#endif
+
 #endif // SCALER_H__
diff --git a/systemstub.h b/systemstub.h
index c1664fe..0b70c4e 100644
--- a/systemstub.h
+++ b/systemstub.h
@@ -68,6 +68,7 @@ struct SystemStub {
 	virtual void copyRectRgb24(int x, int y, int w, int h, const uint8_t *rgb) = 0;
 	virtual void copyRectLeftBorder(int w, int h, const uint8_t *buf) = 0;
 	virtual void copyRectRightBorder(int w, int h, const uint8_t *buf) = 0;
+	virtual void copyRectMirrorBorders(int w, int h, const uint8_t *buf) = 0;
 	virtual void fadeScreen() = 0;
 	virtual void updateScreen(int shakeOffset) = 0;
 
diff --git a/systemstub_sdl.cpp b/systemstub_sdl.cpp
index 8d61544..fab6537 100644
--- a/systemstub_sdl.cpp
+++ b/systemstub_sdl.cpp
@@ -66,6 +66,7 @@ struct SystemStub_SDL : SystemStub {
 	virtual void copyRectRgb24(int x, int y, int w, int h, const uint8_t *rgb);
 	virtual void copyRectLeftBorder(int w, int h, const uint8_t *buf);
 	virtual void copyRectRightBorder(int w, int h, const uint8_t *buf);
+	virtual void copyRectMirrorBorders(int w, int h, const uint8_t *buf);
 	virtual void fadeScreen();
 	virtual void updateScreen(int shakeOffset);
 	virtual void processEvents();
@@ -82,6 +83,7 @@ struct SystemStub_SDL : SystemStub {
 	void prepareGraphics();
 	void cleanupGraphics();
 	void changeGraphics(bool fullscreen, int scaleFactor);
+	void changeScaler(int scaler);
 	void drawRect(int x, int y, int w, int h, uint8_t color);
 };
 
@@ -97,13 +99,13 @@ void SystemStub_SDL::init(const char *title, int w, int h, bool fullscreen, bool
 	_window = 0;
 	_renderer = 0;
 	_texture = 0;
-	_fmt = 0;
+	_fmt = SDL_AllocFormat(kPixelFormat);
 	_screenBuffer = 0;
 	_fadeOnUpdateScreen = false;
 	_fullscreen = fullscreen;
 	_scalerType = scalerParameters->type;
 	_scaler = scalerParameters->scaler;
-	_scaleFactor = CLIP(scalerParameters->factor, _scaler->factorMin, _scaler->factorMax);
+	_scaleFactor = _scaler ? CLIP(scalerParameters->factor, _scaler->factorMin, _scaler->factorMax) : 1;
 	memset(_rgbPalette, 0, sizeof(_rgbPalette));
 	memset(_darkPalette, 0, sizeof(_darkPalette));
 	_screenW = _screenH = 0;
@@ -127,6 +129,14 @@ void SystemStub_SDL::init(const char *title, int w, int h, bool fullscreen, bool
 
 void SystemStub_SDL::destroy() {
 	cleanupGraphics();
+	if (_screenBuffer) {
+		free(_screenBuffer);
+		_screenBuffer = 0;
+	}
+	if (_fmt) {
+		SDL_FreeFormat(_fmt);
+		_fmt = 0;
+	}
 	if (_controller) {
 		SDL_GameControllerClose(_controller);
 		_controller = 0;
@@ -147,6 +157,10 @@ void SystemStub_SDL::setScreenSize(int w, int h) {
 		return;
 	}
 	cleanupGraphics();
+	if (_screenBuffer) {
+		free(_screenBuffer);
+		_screenBuffer = 0;
+	}
 	const int screenBufferSize = w * h * sizeof(uint32_t);
 	_screenBuffer = (uint32_t *)calloc(1, screenBufferSize);
 	if (!_screenBuffer) {
@@ -232,6 +246,19 @@ void SystemStub_SDL::copyRectRgb24(int x, int y, int w, int h, const uint8_t *rg
 	}
 }
 
+static void clearTexture(SDL_Texture *texture, int h, SDL_PixelFormat *fmt) {
+	void *dst = 0;
+	int pitch = 0;
+	if (SDL_LockTexture(texture, 0, &dst, &pitch) == 0) {
+		assert((pitch & 3) == 0);
+		const uint32_t color = SDL_MapRGB(fmt, 0, 0, 0);
+		for (uint32_t i = 0; i < h * pitch / sizeof(uint32_t); ++i) {
+			((uint32_t *)dst)[i] = color;
+		}
+		SDL_UnlockTexture(texture);
+	}
+}
+
 void SystemStub_SDL::copyRectLeftBorder(int w, int h, const uint8_t *buf) {
 	assert(w >= _wideMargin);
 	uint32_t *rgb = (uint32_t *)malloc(w * h * sizeof(uint32_t));
@@ -241,7 +268,10 @@ void SystemStub_SDL::copyRectLeftBorder(int w, int h, const uint8_t *buf) {
 				rgb[i] = _darkPalette[buf[i]];
 			}
 		} else {
-			memset(rgb, 0, w * h * sizeof(uint32_t));
+			const uint32_t color = SDL_MapRGB(_fmt, 0, 0, 0);
+			for (int i = 0; i < w * h; ++i) {
+				rgb[i] = color;
+			}
 		}
 		const int xOffset = w - _wideMargin;
 		SDL_Rect r;
@@ -263,7 +293,10 @@ void SystemStub_SDL::copyRectRightBorder(int w, int h, const uint8_t *buf) {
 				rgb[i] = _darkPalette[buf[i]];
 			}
 		} else {
-			memset(rgb, 0, w * h * sizeof(uint32_t));
+			const uint32_t color = SDL_MapRGB(_fmt, 0, 0, 0);
+			for (int i = 0; i < w * h; ++i) {
+				rgb[i] = color;
+			}
 		}
 		const int xOffset = 0;
 		SDL_Rect r;
@@ -276,6 +309,35 @@ void SystemStub_SDL::copyRectRightBorder(int w, int h, const uint8_t *buf) {
 	}
 }
 
+void SystemStub_SDL::copyRectMirrorBorders(int w, int h, const uint8_t *buf) {
+	assert(w >= _wideMargin);
+	uint32_t *rgb = (uint32_t *)malloc(w * h * sizeof(uint32_t));
+	if (rgb) {
+		for (int i = 0; i < w * h; ++i) {
+			rgb[i] = _darkPalette[buf[i]];
+		}
+		void *dst = 0;
+		int pitch = 0;
+		if (SDL_LockTexture(_wideTexture, 0, &dst, &pitch) == 0) {
+			assert((pitch & 3) == 0);
+			uint32_t *p = (uint32_t *)dst;
+			for (int y = 0; y < h; ++y) {
+				for (int x = 0; x < _wideMargin; ++x) {
+					// left side
+					const int xLeft = _wideMargin - 1 - x;
+					p[x] = rgb[y * w + xLeft];
+					// right side
+					const int xRight = w - 1 - x;
+					p[_wideMargin + _screenW + x] = rgb[y * w + xRight];
+				}
+				p += pitch / sizeof(uint32_t);
+			}
+			SDL_UnlockTexture(_wideTexture);
+		}
+		free(rgb);
+	}
+}
+
 void SystemStub_SDL::fadeScreen() {
 	_fadeOnUpdateScreen = true;
 }
@@ -511,11 +573,15 @@ void SystemStub_SDL::processEvent(const SDL_Event &ev, bool &paused) {
 				break;
 			case SDLK_KP_PLUS:
 			case SDLK_PAGEUP:
-				changeGraphics(_fullscreen, _scaleFactor + 1);
+				if (_scalerType == kScalerTypeInternal || _scalerType == kScalerTypeExternal) {
+					changeGraphics(_fullscreen, _scaleFactor + 1);
+				}
 				break;
 			case SDLK_KP_MINUS:
 			case SDLK_PAGEDOWN:
-				changeGraphics(_fullscreen, _scaleFactor - 1);
+				if (_scalerType == kScalerTypeInternal || _scalerType == kScalerTypeExternal) {
+					changeGraphics(_fullscreen, _scaleFactor - 1);
+				}
 				break;
 			case SDLK_s: {
 					char name[32];
@@ -585,6 +651,16 @@ void SystemStub_SDL::processEvent(const SDL_Event &ev, bool &paused) {
 		case SDLK_ESCAPE:
 			_pi.escape = false;
 			break;
+		case SDLK_F1:
+		case SDLK_F2:
+		case SDLK_F3:
+		case SDLK_F4:
+		case SDLK_F5:
+		case SDLK_F6:
+		case SDLK_F7:
+		case SDLK_F8:
+			changeScaler(ev.key.keysym.sym - SDLK_F1);
+			break;
 		default:
 			break;
 		}
@@ -717,21 +793,18 @@ void SystemStub_SDL::prepareGraphics() {
 	_renderer = SDL_CreateRenderer(_window, -1, SDL_RENDERER_ACCELERATED);
 	SDL_RenderSetLogicalSize(_renderer, windowW, windowH);
 	_texture = SDL_CreateTexture(_renderer, kPixelFormat, SDL_TEXTUREACCESS_STREAMING, _texW, _texH);
-	_fmt = SDL_AllocFormat(kPixelFormat);
 	if (_widescreen) {
 		const int w = _screenH * 16 / 9;
 		const int h = _screenH;
 		_wideTexture = SDL_CreateTexture(_renderer, kPixelFormat, SDL_TEXTUREACCESS_STREAMING, w, h);
+		clearTexture(_wideTexture, _screenH, _fmt);
+
 		// left and right borders
 		_wideMargin = (w - _screenW) / 2;
 	}
 }
 
 void SystemStub_SDL::cleanupGraphics() {
-	if (_screenBuffer) {
-		free(_screenBuffer);
-		_screenBuffer = 0;
-	}
 	if (_texture) {
 		SDL_DestroyTexture(_texture);
 		_texture = 0;
@@ -748,10 +821,6 @@ void SystemStub_SDL::cleanupGraphics() {
 		SDL_DestroyWindow(_window);
 		_window = 0;
 	}
-	if (_fmt) {
-		SDL_FreeFormat(_fmt);
-		_fmt = 0;
-	}
 }
 
 void SystemStub_SDL::changeGraphics(bool fullscreen, int scaleFactor) {
@@ -762,29 +831,53 @@ void SystemStub_SDL::changeGraphics(bool fullscreen, int scaleFactor) {
 	}
 	_fullscreen = fullscreen;
 	_scaleFactor = factor;
-	if (_texture) {
-		SDL_DestroyTexture(_texture);
-		_texture = 0;
-	}
-	if (_wideTexture) {
-		SDL_DestroyTexture(_wideTexture);
-		_wideTexture = 0;
-	}
-	if (_renderer) {
-		SDL_DestroyRenderer(_renderer);
-		_renderer = 0;
-	}
-	if (_window) {
-		SDL_DestroyWindow(_window);
-		_window = 0;
-	}
-	if (_fmt) {
-		SDL_FreeFormat(_fmt);
-		_fmt = 0;
-	}
+	cleanupGraphics();
 	prepareGraphics();
 }
 
+void SystemStub_SDL::changeScaler(int scaler) {
+	ScalerParameters scalerParameters = ScalerParameters::defaults();
+	switch (scaler) {
+	case 0:
+		scalerParameters.type = kScalerTypePoint;
+		break;
+	case 1:
+		scalerParameters.type = kScalerTypeLinear;
+		break;
+	case 2:
+		scalerParameters.type = kScalerTypeInternal;
+		scalerParameters.scaler = &_internalScaler;
+		break;
+#ifdef USE_STATIC_SCALER
+	case 3:
+		scalerParameters.type = kScalerTypeInternal;
+		scalerParameters.scaler = &scaler_nearest;
+		break;
+	case 4:
+		scalerParameters.type = kScalerTypeInternal;
+		scalerParameters.scaler = &scaler_tv2x;
+		break;
+	case 5:
+		scalerParameters.type = kScalerTypeInternal;
+		scalerParameters.scaler = &scaler_xbrz;
+		break;
+#endif
+	default:
+		return;
+	}
+	if (_scalerType != scalerParameters.type || scalerParameters.scaler != _scaler) {
+		_scalerType = scalerParameters.type;
+		_scaler = scalerParameters.scaler;
+		const int scaleFactor = CLIP(_scaleFactor, _scaler->factorMin, _scaler->factorMax);
+		// only recreate the window if dimensions actually changed
+		if (scaleFactor != _scaleFactor) {
+			cleanupGraphics();
+			_scaleFactor = scaleFactor;
+			prepareGraphics();
+		}
+	}
+}
+
 void SystemStub_SDL::drawRect(int x, int y, int w, int h, uint8_t color) {
 	const int x1 = x;
 	const int y1 = y;
diff --git a/unpack.cpp b/unpack.cpp
index ad490a2..44fe0bc 100644
--- a/unpack.cpp
+++ b/unpack.cpp
@@ -5,9 +5,10 @@
  */
 
 #include "unpack.h"
+#include "util.h"
 
 struct UnpackCtx {
-	int datasize;
+	int size;
 	uint32_t crc;
 	uint32_t bits;
 	uint8_t *dst;
@@ -26,40 +27,52 @@ static bool nextBit(UnpackCtx *uc) {
 	return carry;
 }
 
-static uint16_t getBits(UnpackCtx *uc, int bitsCount) {
-	uint16_t c = 0;
-	for (int i = 0; i < bitsCount; ++i) {
-		c <<= 1;
+static int getBits(UnpackCtx *uc, int count) {
+	int bits = 0;
+	for (int i = 0; i < count; ++i) {
+		bits <<= 1;
 		if (nextBit(uc)) {
-			c |= 1;
+			bits |= 1;
 		}
 	}
-	return c;
+	return bits;
 }
 
 static void copyLiteral(UnpackCtx *uc, int bitsCount, int len) {
-	const int count = getBits(uc, bitsCount) + len + 1;
-	for (int i = 0; i < count; ++i) {
-		*uc->dst = (uint8_t)getBits(uc, 8);
-		--uc->dst;
+	int count = getBits(uc, bitsCount) + len + 1;
+	uc->size -= count;
+	if (uc->size < 0) {
+		count += uc->size;
+		uc->size = 0;
 	}
-	uc->datasize -= count;
+	for (int i = 0; i < count; ++i) {
+		*(uc->dst - i) = (uint8_t)getBits(uc, 8);
+	}
+	uc->dst -= count;
 }
 
 static void copyReference(UnpackCtx *uc, int bitsCount, int count) {
-	const uint16_t offset = getBits(uc, bitsCount);
-	for (int i = 0; i < count; ++i) {
-		*uc->dst = *(uc->dst + offset);
-		--uc->dst;
+	uc->size -= count;
+	if (uc->size < 0) {
+		count += uc->size;
+		uc->size = 0;
 	}
-	uc->datasize -= count;
+	const int offset = getBits(uc, bitsCount);
+	for (int i = 0; i < count; ++i) {
+		*(uc->dst - i) = *(uc->dst - i + offset);
+	}
+	uc->dst -= count;
 }
 
-bool delphine_unpack(uint8_t *dst, const uint8_t *src, int len) {
+bool delphine_unpack(uint8_t *dst, int dstSize, const uint8_t *src, int srcSize) {
 	UnpackCtx uc;
-	uc.src = src + len - 4;
-	uc.datasize = READ_BE_UINT32(uc.src); uc.src -= 4;
-	uc.dst = dst + uc.datasize - 1;
+	uc.src = src + srcSize - 4;
+	uc.size = READ_BE_UINT32(uc.src); uc.src -= 4;
+	if (uc.size > dstSize) {
+		warning("Unexpected unpack size %d, buffer size %d", uc.size, dstSize);
+		return false;
+	}
+	uc.dst = dst + uc.size - 1;
 	uc.crc = READ_BE_UINT32(uc.src); uc.src -= 4;
 	uc.bits = READ_BE_UINT32(uc.src); uc.src -= 4;
 	uc.crc ^= uc.bits;
@@ -87,6 +100,7 @@ bool delphine_unpack(uint8_t *dst, const uint8_t *src, int len) {
 				break;
 			}
 		}
-	} while (uc.datasize > 0);
+	} while (uc.size > 0);
+	assert(uc.size == 0);
 	return uc.crc == 0;
 }
diff --git a/unpack.h b/unpack.h
index a5f050f..4f2a44d 100644
--- a/unpack.h
+++ b/unpack.h
@@ -9,6 +9,6 @@
 
 #include "intern.h"
 
-extern bool delphine_unpack(uint8_t *dst, const uint8_t *src, int len);
+extern bool delphine_unpack(uint8_t *dst, int dstSize, const uint8_t *src, int srcSize);
 
 #endif // UNPACK_H__
diff --git a/video.cpp b/video.cpp
index aae4b80..0363c3a 100644
--- a/video.cpp
+++ b/video.cpp
@@ -629,8 +629,9 @@ static void decodeLevHelper(uint8_t *dst, const uint8_t *src, int offset10, int
 void Video::AMIGA_decodeLev(int level, int room) {
 	uint8_t *tmp = _res->_scratchBuffer;
 	const int offset = READ_BE_UINT32(_res->_lev + room * 4);
-	if (!delphine_unpack(tmp, _res->_lev, offset)) {
-		error("Bad CRC for level %d room %d", level, room);
+	if (!delphine_unpack(tmp, Resource::kScratchBufferSize, _res->_lev, offset)) {
+		warning("Bad CRC for level %d room %d", level, room);
+		return;
 	}
 	uint16_t offset10 = READ_BE_UINT16(tmp + 10);
 	const uint16_t offset12 = READ_BE_UINT16(tmp + 12);
@@ -900,6 +901,9 @@ void Video::PC_drawStringChar(uint8_t *dst, int pitch, int x, int y, const uint8
 	}
 }
 
+static uint8_t _MAC_fontFrontColor;
+static uint8_t _MAC_fontShadowColor;
+
 void Video::MAC_drawStringChar(uint8_t *dst, int pitch, int x, int y, const uint8_t *src, uint8_t color, uint8_t chr) {
 	DecodeBuffer buf;
 	memset(&buf, 0, sizeof(buf));
@@ -909,8 +913,8 @@ void Video::MAC_drawStringChar(uint8_t *dst, int pitch, int x, int y, const uint
 	buf.x = x * _layerScale;
 	buf.y = y * _layerScale;
 	buf.setPixel = Video::MAC_drawBufferFont;
-	_charFrontColor = color;
-	buf.dataPtr = this;
+	_MAC_fontFrontColor = color;
+	_MAC_fontShadowColor = _charShadowColor;
 	assert(chr >= 32);
 	_res->MAC_decodeImageData(_res->_fnt, chr - 32, &buf);
 }
@@ -1004,21 +1008,20 @@ void Video::MAC_drawBufferFont(DecodeBuffer *buf, int src_x, int src_y, int src_
 	if (y >= 0 && y < buf->h) {
 		const int x = buf->x + src_x;
 		if (x >= 0 && x < buf->w) {
-			const Video *vid = (Video *)buf->dataPtr;
 			const int offset = y * buf->pitch + x;
 			switch (color) {
 			case 0xC0:
-				buf->ptr[offset] = vid->_charShadowColor;
+				buf->ptr[offset] = _MAC_fontShadowColor;
 				break;
 			case 0xC1:
-				buf->ptr[offset] = vid->_charFrontColor;
+				buf->ptr[offset] = _MAC_fontFrontColor;
 				break;
 			}
 		}
 	}
 }
 
-void Video::MAC_fillRect(int x, int y, int w, int h, uint8_t color) {
+void Video::fillRect(int x, int y, int w, int h, uint8_t color) {
 	uint8_t *p = _frontLayer + y * _layerScale * _w + x * _layerScale;
 	for (int j = 0; j < h * _layerScale; ++j) {
 		memset(p, color, w * _layerScale);
diff --git a/video.h b/video.h
index 8526e43..a58b32e 100644
--- a/video.h
+++ b/video.h
@@ -90,7 +90,7 @@ struct Video {
 	static void MAC_drawBuffer(DecodeBuffer *buf, int src_x, int src_y, int src_w, int src_h, uint8_t color);
 	static void MAC_drawBufferMask(DecodeBuffer *buf, int src_x, int src_y, int src_w, int src_h, uint8_t color);
 	static void MAC_drawBufferFont(DecodeBuffer *buf, int src_x, int src_y, int src_w, int src_h, uint8_t color);
-	void MAC_fillRect(int x, int y, int w, int h, uint8_t color);
+	void fillRect(int x, int y, int w, int h, uint8_t color);
 	void MAC_drawSprite(int x, int y, const uint8_t *data, int frame, bool xflip, bool eraseBackground);
 };