This page contains Archer Maclean's Mercury Codes for PSP called "Level select" and has been posted or updated on Sep 20, 2006 by putuhop. Let us know what you think of this Code by thumbs voting.
Select two player mode, then enter hg? as your initials. Return to the main menu and start a single player game. At the world selection screen, hold L + R and press Select. All levels will now be unlocked. To lock all levels again, hold L + R and press Select again.
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