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

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

Modern Metal Rival [Sonic Generations] [Mods]

Sonic the Hedgehog (1991 video game) - Wikipedia

Sonic Generations - Modern Manic and Metal Sonic as Rival Preview

Sonic Generations - Modern Manic and Metal Sonic as Rival Preview

Metal Sonic Generations

Sonic Frontiers, Sonic Wiki Zone

Sonic Generations OST - Rival Battle: Metal Sonic (US Version)

Metal Sonic (Sonic Generations), Sonic Wiki Zone