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This is pretty easy; simply play the game until you've achieved a score good enough to enter your name in the highscore screen. Now enter

BONECRACK

as your name. Once you are at the main men screen again select Options and turn Skeleton Mode on. Now when you enter the game all of the characters will appear as skeletons. Playing in this mode is kind of tough because everyone looks the same. So, do your best to keep an eye on your character. Or do what we here at IGN Codes do, just hit all of the buttons until you're the last one standing.

This code is also very easy to do, play the game until you've achieved a score well enough for you to enter your name on the highscore screen. Enter

DEFORMANIA

as your name. Access the options menu and turn Deform mode on. Enter the game and notice how your cheat code has altered your character's appearance to resemble an Excedrin commercial. (I've got a head this big, and it's got Excedrin written all over it!)