Metal Sonic a rival in Sonic Generations - Gematsu

Metal Sonic will return to the Sonic franchise as a rival character in this fall’s Sonic Generations. Revealed today, Metal Sonic sticks to his classic Sonic CD design.

Sonic Colors - Wikipedia

Unstoppable: Sonic The Hedgehog 30th Anniversary - SegaNet - Game News - Fórum SegaNet

Sonic Generations: Metal Sonic Vs Metal Shadow

Sonic Generations Rival Battle 1 : Metal Sonic (hard mode, no damage, S-rank)

Team Sonic Racing, Sonic Wiki Zone

Sonic Generations - Episode Metal, Metal Sonic Mod

Sonic Colors - Wikipedia

Unstoppable: Sonic The Hedgehog 30th Anniversary - SegaNet - Game News - Fórum SegaNet

Sonic Colors: Ultimate 'Planet Wisp: Act 4' gameplay, screenshots - Gematsu

Modern Metal Rival [Sonic Generations] [Mods]

Sonic Generations The Hypersonic55's Realm of Reviews and Other Stuff

Sonic The Hedgehog - A Little Ball of Energy in an Extremely Handsome Package