Chip's Challenge Codes -

Level select:
Hold [Ctrl] + T during game play. Alternatively, hold [Ctrl] + [Alt] and type qwerty during game play.

Level skip:
Begin game play and press F until the screen flips upside-down. Type i think therefore i am. Press C to jump to the next level.

Unlimited time:
Type SAGGITARIANS MAKE BETTER LOVERS.

Level	Password
144	GVXQ
145	TONY
146	JHEN
147	COZA
148	RGSK
149	DIGW

Note: These passwords correspond to the final level and five bonuslevels.