Sonic X - Sonic Retro

Sonic X: A Super Sonic Hero

OFFICIAL] SONIC X Ep73 - The Cosmo Conspiracy

Sonic X (2003)

OFFICIAL] SONIC X Ep25 - A Dastardly Deed

Is Sonic Boom (the series) equivalent to Sonic X (in terms of the storyline)? And what about the new Sonic Prime? - Quora

Sonic X TV Show Collectible Media Page

Sonic the Hedgehog, Sonic X Project Wiki

Archie Sonic X, Mobius Encyclopaedia

Sonic The Hedgehog (Sonic X Render #2) by ShadicalTheHedgehog on DeviantArt

Sonic X: A Super Sonic Hero, Vol. 1 (Chaos Control Freaks / Sonic to the Rescue)