You can only turn Super Sonic in this game in the final level.
you can only play as super sonic when you fight the finalhazard.
Ok to get super sonic first you need to beat the game with sonic,tails,knuckles,amy,big,and E102(the robot guy) in their own story's. For example the last time I beat the game before I got super sonic it was big,the at the main menu go to adventure and there would be a yellow question mark between sonic and E102 and that is super sonic (NOTE:you can not play super sonic in mission or trail.And you can play super sonic again even if you beat the game)
Easy eat a chao with all characters and go to any sonic level.
you cant
You have to get 100% on all the characters stories. (Note: Sonic has to go through ten levels while everyone else has to go through five)
there is sonic heroes, sonic the hedgehog for xbox 360, sonic riders, sonic riders zero graviti, sonic DX adventure, I am not shure about sonic adventure 1 and 2 because a never have played them but i think they do have super sonic too. I think in the sega games there is super sonic too.
No.
Sonic Super Hedgetastic Adventure and the death of Shadow
Super shadow becomes playable during the ending sequence of Sonic Adventure 2, Shadow the Hedgehog and Sonic 06.
unlock him by shagging the boss
Depends on which game you're talking about, but yes. Sonic 2, 3, Sonic & Knuckles, Sonic 3 & Knuckles, Sonic Adventure, Sonic Adventure 2, Sonic Adventure 2 Battle, Sonic Heroes, Sonic The Hedgehog (For Wii, XBox 360 and PS3), and most Sonic Games you can be. Usually, doing it requires the 7 Chaos Emeralds. However, in Sonic Adventure and Sonic Adventure 2, its' done as a special extra quest.
go to the part in adventure mode where you fight tabuu and wait because sonic will come and then he's a playable character. defeat tabuu and then sonic is playable