This page contains Um Jammer Lammy Unlockables for Playstation called "2-Player vs. Lammies" and has been posted or updated on Feb 25, 2009 by jessds.
- Developer: Nanaon-sha
- Publisher: Scea
- Genre: Rhythm / Music
- Release: Jul 31, 1999
- ESRB: Everyone
2-Player vs. Lammies
Complete the 2-Player Lammies game to unlock the "2-Player vs. Lammies" option.
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