diff --git a/src/game.cpp b/src/game.cpp
index 45e8548..c4af4bc 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -70,10 +70,19 @@ void newGame()
 	currentGame.maxPlasmaAmmo = 100;
 	currentGame.maxRocketAmmo = 10;
 
-	currentGame.shieldUnits = 1;
+    if (currentGame.gamePlay == GAMEPLAY_ONPON)
+    {
+        currentGame.shieldUnits = 2;
+        player.maxShield = 50;
+        player.shield = 50;
+    }
+    else
+    {
+	    currentGame.shieldUnits = 1;
+	    player.maxShield = 25;
+	    player.shield = 25;
+	}
 
-	player.maxShield = 25;
-	player.shield = 25;
 	player.ammo[0] = 0;
 	player.ammo[1] = 5;
 	player.weaponType[0] = W_PLAYER_WEAPON;
diff --git a/src/missions.cpp b/src/missions.cpp
index 37b6502..c384603 100644
--- a/src/missions.cpp
+++ b/src/missions.cpp
@@ -160,7 +160,8 @@ void updateSystemStatus()
 		strcpy(currentGame.stationedName, "Nerod");
 		initPlanetMissions(currentGame.system);
 
-		currentGame.shieldUnits = 2;
+		if (currentGame.gamePlay != GAMEPLAY_ONPON)
+		    currentGame.shieldUnits = 2;
 	}
 	else if (currentGame.area == 11)
 	{
@@ -170,7 +171,8 @@ void updateSystemStatus()
 		strcpy(currentGame.stationedName, "Odeon");
 		initPlanetMissions(currentGame.system);
 
-		currentGame.shieldUnits = 3;
+		if (currentGame.gamePlay != GAMEPLAY_ONPON)
+		    currentGame.shieldUnits = 3;
 	}
 	else if (currentGame.area == 18)
 	{
@@ -180,7 +182,8 @@ void updateSystemStatus()
 		strcpy(currentGame.stationedName, "Pluto");
 		initPlanetMissions(currentGame.system);
 
-		currentGame.shieldUnits = 4;
+		if (currentGame.gamePlay != GAMEPLAY_ONPON)
+		    currentGame.shieldUnits = 4;
 	}
 	else // Update the mission for the planet
 	{
diff --git a/src/player.cpp b/src/player.cpp
index 24e2774..c5cd601 100644
--- a/src/player.cpp
+++ b/src/player.cpp
@@ -113,7 +113,7 @@ void doPlayer()
 
 			if (player.weaponType[1] == W_CHARGER)
 			{
-				if (engine.keyState[SDLK_SPACE])
+				if (engine.keyState[SDLK_SPACE] && !(currentGame.gamePlay == GAMEPLAY_ONPON && (engine.keyState[SDLK_LCTRL] || engine.keyState[SDLK_RCTRL])))
 				{
 					limitCharAdd(&player.ammo[1], 1, 0, 200);
 				}