Level	Password
GWAR concert	Woa, Hah, Yah, Huh, Yea, Woa, Yea, Woo
After Highland hospital	Woa, Hah, Yea, Hee, Heh, Heh, Woa, Hah
After Highland high school	Woa, Hah, Yah, Hee, Hah, Woa, Huh, Yea
After streets of Highland	Yea, Hee, Yah, Hee, Yah, Huh, Huh, Woa
Turbo Mall 2000	Hee, Hah, Yah, Yah, Hah, Woo, Hee, Hah

Bonus stage:
There is a shelf in Highland Hospital right before the second gurney game elevator. Switch to Beavis and have Butthead kick you up on the shelf. Walk to the vent and open it to reach a bonus stage similar to the one in the high school.