you cant
YOU HAVE TO HACK!
No.
unlock him by shagging the boss
In Sonic Adventure 2: Battle you become super shadow in the final level.
Sonic and Shadow isn't in Melee so you cant get them with a code.
yes you can but you have to download the japan version of the game on your PC if you have a visualboy advance.look up on youtube how to hack sonic battle there you will get the instructions you need to hack the game then after you do that you can hack the game to make any character change and you can make super sonic and super shadow i think the super shadow looks better hope you find wat you need. but another thingyou can only make it look like super sonic it will not actually be super sonic the super shadow on the other hand will look alomost like the real supershadow because the super shadow is the same model as the origianal shadow.
finish sonic shadow and silver's episodes and then u will unlock the last episode which has super sonic super shadow and super silver
Super Sonic is only playable alongside Super Shadow, and Super Silver during the final boss battle against Solaris.
(Hope you meant sonic battle as in SBA2) Play hero mode all the way till you get to the part(scene) were you and shadow turn super,then fight the final hazarded. :P
the answer is super shadow
Super Shadow
no you get super sonic