For the Genesis? You can't.
The code to unlock shadow on ultimate flash Sonic is 595313131313131.
Sonic and Shadow isn't in Melee so you cant get them with a code.
Sonic:6 Shadow:4
Um u cant shadow is not in sonic advanced 2
NO WAY! u can only get Amy and shadow 2 unlock them u have 2 Type this code: 5953131313131313
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.
Shadow doesn't always call Sonic a faker. In fact Shadow never called Sonic a faker once in the series. Although Sonic called Shadow a faker once in Sonic Adventure 2 Battle.
No.
No
yes shadow the hedgehog is 2 player
no sonic is not stronger then shadow . shadow is stronger then sonic . in the shadow the hegehog trailer shadow killed sonic