This page contains Dave Mirra Freestyle BMX Unlockables for Dreamcast called "Silly grunts" and has been posted or updated on Sep 13, 2006 by MeC00L.
- Developer: Z-axis, Ltd.
- Publisher: Acclaim
- Genre: Sports
- Release: Nov 20, 2000
- ESRB: Everyone
Beat the game as Tim Mirra to unlock the silly grunt option at the cheat screen.
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