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)
Stuck in this game? Set a specific, clearly defined question and let other gamers answer your question or view answers to previously asked questions. If you think you are an expert then please try to help others with their questions.
From: radin nosrati
Posted on: 04-06-2012