Shanghai Cheats for GameBoy

Begin a game and press Select to pull up the Options menu. Select "New Game" and push A. You can enter in three letters:

Code:	Result:
ZAP	A new ''Zap'' sound effect is added to the game.
STF	Allows you to view the credits
REV	For a game where all the tiles are reversed. When you select a tile it turns over. You must remember where the tiles are to find matches.
MAN	Makes fewer tiles for an easier game.

Press Select + Start keys at title screen.