It is impossible! Maybe if you have a twin, but it still does not work, so I would say it is not possible.
you can turn into shadow be preseingb 2 as sonic in sonic stimyoltar
I think just sonic and tails by the trailers
No. However, some people have hacked the game and changed Sonic's colors to mimic Shadow's.
Hell no
You can turn into super sonic in sonic colors,but you do have color powers from the wisps.DS:BoostBurstVoidLazerDrilland RocketWii:RocketBurstDrillFrenzyHoverCubeLazerand Spike
No, in fact Shadow is not even in Unleased
Originally he was going to be, but there has been no confirmation as to whether or not he will be in the new Sonic game.
You can't, unless you use a hack that makes Sonic look like Shadow.
My best guess is yes, but I I'm not sure because of darkspine Sonic. I think shadow can, under the same conditions as Sonic. He hasn't had the same conditions, but I'm sure if he did he could turn into darkspine Shadow. Other than that, he can turn into more forms than Sonic.
He can for the Ds but im not too sure about the wii
no sonic is not stronger then shadow . shadow is stronger then sonic . in the shadow the hegehog trailer shadow killed sonic
You don't.You can only be team super sonic(super sonic, super knuckles, and super tails).