Shadow The Hedgehog must have an upgrade in his immortality status in Fandom Wiki : r/SonicTheHedgehog

Amy Rose (character), Amy Rose Wiki

Dr. Crusher Presents: The 30 Days of Sonic the Hedgehog (sponsored

Shadow, SEGA Heroes Wiki

Steam Workshop::Cool Guy Fubarace Mods

Sonic the Hedgehog, The Codex Wiki

Shadow The Hedgehog brings Chaos to DEATH BATTLE! by

Metal Sonic, Villains Wiki

Scourge the Hedgehog, Sonic Wiki Zone

Shadow the Hedgehog, Oldum77 Wiki

IDW Publishing – IDW Publishing

Sonic Adventure 2 (Video Game) - TV Tropes

Shadow the Hedgehog, DEATH BATTLE Wiki

Who would win in a fight, Godzilla or Sonic? - Quora

Infinite, Sonic Wiki Zone

List of Sonic the Hedgehog characters - Wikipedia