This page contains The Grim Adventures Of Billy And Mandy Unlockables for Nintendo Wii called "Alternate costumes" and has been posted or updated on Nov 21, 2006 by martymar007. Let us know what you think of this Unlockable by thumbs voting.
- Developer: High Voltage Software
- Publisher: Midway
- Genre: Action Beat-'Em-Up
- Release Date: Nov 16, 2006
- ESRB: Everyone 10+
- Other Platforms
You have to finish Story mode with any character to unlock an alternate costume for that person.
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