Invincibility
Enter the password XBABYX. During a game, your life meter will decrease when you take a hit, but you’ll never die.

Level Select
At the title screen, select Options. Then enter the password ZZZCYX. A level-select option will appear over the Password option. Now you can go to any level.

Do you know any additional cheats for this game? Is there an error listed above? Let us know about it and we’ll update the list.