Unlock All Characters
Pause the game, then press and hold the L button-the following code: X, B, left, Y, right, right.
Play As Synder
Get the time challenge goal for every level to unlock Synder.
Play As Gex
Successfully complete the game with all three default characters in time
challenge, stunt challenge, and cash trial modes with all medals to unlock Gex.
Have Fruits During Entire Race
Pause the game, then hold R and press B, X, Left(2), Y.
Never Get Hit By Items
Pause the game, then hold L and press X, B, B, Left(2), Y, B.
Pause the game, then hold L and press Up, X, B, Y, Left(2).