Sonic Rivals (PSP)

Unlock Metal Sonic:
Complete the game with Sonic, Knuckles, Silver and Shadow.
(supplied by: dogoup)

Unlockables:

To unlock...	You have to...
Blue Chaos Cup	Complete all challenges for Death Yard Zone
Cyan Chaos Cup	Complete all challenges for Colosseum Highway Zone
Green Chaos Cup	Complete all challenges for Forest Falls Zone
Grey Chaos Cup	Complete every challenge in the game
Purple Chaos Cup	Complete all challenges for Meteor Base Zone
Red Chaos Cup	Complete all challenges for Sky Park Zone
Yellow Chaos Cup	Complete all challenges for Crystal Mountain Zone
Sonic Skin	Complete story mode with Sonic
Shadow Skin	Complete story mode with Shadow
Silver Skin	Complete story mode with Silver
Knuckles Skin	Complete story mode with Knuckles
Metal Sonic Skin	Unlock Metal Sonic