File:Wintergames shadow.png - Sonic Retro

Metal Sonic - Wikipedia

File:Shadow lethal highway.png - Sonic Retro

Sonic Adventure New Year's DLC (found Sonic the Hedgehog holiday-themed DLC; 1998) - The Lost Media Wiki

Sonic-16 (non-existent build of unreleased Sega Genesis/Mega Drive game based on Sonic the Hedgehog animated TV series; 1993) - The Lost Media Wiki

Silver - Super Mario Wiki, the Mario encyclopedia

Mario & Sonic at the Olympic Winter Games - Sonic Spin-offs - Sonic Stadium

Sonic the Hedgehog 3 - The Cutting Room Floor

File:Shadow-shoot-game.png - Sonic Retro

Shadow the Hedgehog - Sonic Retro

File:Shadowth vector.png - Sonic Retro

Shadow the Hedgehog, Neo Encyclopedia Wiki

Maratona Sonic: Mario & Sonic at the Olympic Winter Games (DS)

Sonic Battle - Sonic Spin-offs - Sonic Stadium

File:Shadow title.png - Sonic Retro