This page contains Sonic Rivals Unlockables for PSP called "Metal Sonic" and has been posted or updated on Jul 20, 2007 by mshake.
- Developer: Backbone Entertainment
- Publisher: Sega
- Genre: Racing
- Release: Nov 16, 2006
- ESRB: Everyone
To unlock Metal Sonic you must beat the game with Sonic, Knuckles, Silver, and Shadow. (In no particular order)
Please submit a problem for any incomplete, non-working or fake cheat listed above.
From: radin nosrati
Posted on: 04-06-2012