Hard mode - Successfully complete the game to
unlock the hard difficulty setting.
Extreme mode - Successfully complete the game on the hard
difficulty setting to unlock the extreme difficulty setting. Extreme
mode consists of the eight Bosses without the story version of the game.
Game Shark Codes
Note: You must have a 2.1 or higher version of the Game Shark to use
these codes in a Game Boy Color system.
Infinite Lives 010365D3
Infinite Health 019021D5
Infinite Shotgun Ice 011E6DD3
Have All Body Parts 01FF83D3
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