You play as Shadow when you finished Crisis City as Sonic. Shadow's Episode will then be availible to play. You can also play as Silver the Hedgehog when you defeat him for the first time.
Sonic 06
Super shadow becomes playable during the ending sequence of Sonic Adventure 2, Shadow the Hedgehog and Sonic 06.
Shadow the hedgehog debuted in Sonic Adventure 2 and was featured in most games since then. He is playable in Sonic Adventure 2, Sonic Heroes, Shadow the Hedgehog, Sonic 06 and several side projects on handhelds.
Sonic Shadow Sliver ............that is if you mean sonic 06
that answer is up to you if you Like Shadow I would suggest "Shadow The Hedgehog" if you like Blaze And Sonic "Sonic Rush" if you like most of the characters "Sonic the hedgehog" redone in 2006 AKA "Sonic 06"
Super Shadow only appears and is playable in: Shadow the Hedgehog and Sonic 06 I believe.
sonic unleashed
Shadow is both stronger and faster than Silver the Hedgehog. As seen in Sonic 06 where Shadow beats Silver in a fight after the Radical Train level.
In fact, Shadow has his own game! It is called Shadow the hedgehog. He is also in Sonic '06 where he in considered the best chapter in the whole game.
Sonic Adventure 2, Sonic Battle, Sonic Heroes, Sonic The Hedgehog (Sonic '06), Sonic Rivals, Sonic Rivals 2, Sonic Chronicles: The Dark Brotherhood, lastly Sonic and the Black Knight (as Lancelot).
It depends, if you mean the 06 version, then yes. But if you are talking about the original Sonic the Hedgehog from 1991, then no. The idea of super Sonic wasn't thought of until Sonic 2.
I`m Pretty Sure He Only Dies Once On Sonic The Hedgehog `06,When Mephelies(Simular to Sonic,Shadow,And Silver)Shot a beam at Sonic.