Archer MacLean's Mercury Cheats(PSP)

Unlockables

Unlock Bonus Stages:
Come first on every high Score board on all the stages to unlock their corresponding Bonus stage.

Unlock ALL Levels:
Enter 'hg?' as your initials in 2-Player mode and Exit. Start 1-Player and hold L + R and press 'Select' at the 'World Selection' screen. Hold L + R and press 'Select' again to lock the levels.