Space Channel 5 cheats and cheat codes for Playstation 2

Unlock CPU player: 
Hold L1 + R1 and press Up, Left, X, Left, X, Down, Right, Circle, Right, Circle 
while playing the game. This will give you the game contorol to the CPU.

Unlock Level select + Hard mode:
Finish the game, then load back your savegame. You can choose any level now. 
This will unlock new routes at a hard mode also.

Unlock Purple Ulala:
Reach minimum 95% rank to unlock Ulala

Meet with Michael Jackson:
You can see Michael Jackson at the last level.