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.
- Developer: Awesome Studios
- Publisher: Ignition Entertainment
- Genre: Puzzle
- Release: Apr 6, 2005
- ESRB: Everyone
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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