This game is also available on PS2.
Retro Game Cheats for Kao the Kangaroo Round 2 (Gamecube)
Effect: unlock race bonus
Effect: unlock rope bonus
Effect: allow players to roll as much as they want
Effect: make tail attack more effective
Effect: unlock baseball bonus
Effect: unlock shooting bonus
Effect: unlock tree bonus
Effect: make jump attack more effective
Effect: be able to jump further
Effect: unlimited boomerangs