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.