Iggy's Reckin' Balls cheats and cheat codes for Nintendo 64

Cheat menu
Hit R + Z while you are on the opening screen.
Then, enter any of the following cheat codes:

Code - Results
2ROKTOO - Enable Turok 2 gfx engine
2TIMES - Enable turbo mode
ENTAROADUN - Disable characters except Iggy's girlfriend
GOBABY - Maximum turbos
GOOEYGOOGOO - Gooey platforms
GOOEYICEPRINCESS - Icy and gooey platforms
HAPPYHEADS - Unlock all characters
ICEPRINCESS - Ice platforms
JUMPAROUND - Stage selection (pause the game play to select any stage)
MICROBALLS - Small balls
NONSTOP - Non-stop roller ball
OHMY - Random bombs
PENCIL - Pencil and ink mode
ROLFHARRIS - Monochorme mode
SWOPSHOP - Match and Mix mode
THEUNIVERSE - Unlock all tracks
TOOMUCHFUN - Bouncing balls
TOOMUCHPIE - Fat balls

Unlock extra characters
Win 1st place on each race

Maximum boost
Pressp Jump during on a boost platform.