Super/Hyper Knuckles/Tails Discussion. - Chao Island

Knuckles the Echidna - Sonic Retro

How powerful is Hyper Sonic, and is he complex multiversal? - Quora

Franchise Festival #86: Sonic the Hedgehog (1998-2007) – The Avocado

Newbie's Perspective: Archie Sonic Reviews Issues 201-249 & Universe 3-50 Deluxe Scripts: Iron Dominion & Mecha Sally Arc – CrystalMaiden77

In the Archie Sonic comics, which super form is the most powerful Super Sonic, Hyper Knuckles, Turbo Tails, or Super Shadow? - Quora

Sonic Adventure 3 (XxROTSA2xX), Sonic Battalion Wiki

We're arguably going towards the best years for the Sonic franchise in a while, or even ever. With two great games in a row, internal changes, 2D and 3D games, etc, it

THE EGG TOPIC! (Sonic Fanfic Ideas, Discussion and Recs), Page 371

Knuckles the Echidna, Character Profile Wikia

Sonic Adventure 2 - Wikipedia

the reason Tails and Knuckles didnt go Super in Sonic Heroes - Sonic Chat - Sonic Stadium

If only male Hedgehogs can go super, why can robots do it to? : r/SonicTheHedgehog

What is your biggest sonic theory : r/SonicTheHedgehog