File:London2012 Shadow.png - Sonic Retro

Sonic Party Video Games

Shadow the Hedgehog - The Cutting Room Floor

Shadow the Hedgehog - Sonic Retro

Mario & Sonic - London 2012 Virtual Card Album

Due to the lack of a proper timeline in the Sonic Encyclo-Speed-ia, I decided to make my own. Second image contains my notes, reasonings, and conjectures. : r/SonicTheHedgehog

Sonic The Hedgehog - Mario And Sonic At The London 2012 Olympic Games Shadow, HD Png Download - 600x821 (#307577) - PinPng

Shadow the Hedgehog/Gallery, Sonic Runners Reloaded Wiki

Sonic Retro:Anniversaries/November - Sonic Retro

Amy - Super Mario Wiki, the Mario encyclopedia

File:London2012 Luigi.png - Sonic Retro

List of Sonic the Hedgehog characters - Wikipedia

Mario & Sonic at the London 2012 Olympic Games (Nintendo 3DS) - Super Mario Wiki, the Mario encyclopedia

File:Shadow title.png - Sonic Retro