Sonic the Hedgehog (Modern), VS Battles Wiki

Metal Sonic v3.0 (Archie Comics), VS Battles Wiki, neo metal sonic 3.0

Metal Sonic (Sonic Boom), VS Battles Wiki, metal sonic png

Sonic General Discussion Zone 11: Fist of The North Zone, Page 4

Sonic (Game) Render Changes + Small Ability Additions

Who is actually Stronger, Sonic or Shadow? - Quora

User blog:Bobsican/Sonic the Hedgehog (Composite), VS Battles Wiki

Sonic the Hedgehog (Modern), VS Battles Wiki

Sonic the Hedgehog (Classic), VS Battles Wiki

How powerful do you think game sonic is? : r/SonicTheHedgehog

Sonic the Hedgehog - Wikipedia