well kinda. there is sonic and Mario at the winter olyimpics for the DS ( and only for the DS) where there is a story mode selection
Sonic 3D Blast came before Sonic Adventure.
No, Mario isn't on sonic the hedgehog game.
Sonic Adventure 2 By The SuperAmr!!!!!!!!!!!!!
complete the game then do all the special missions.You also get Bowser Jr
Sonic Adventure
Sonic adventure battle 2
nope its either sonic or mario :(
You can click download game trial after clicking sonic adventure at the game marketplace.
Sonic adventure 1 and 2
Sonic Adventure Battle (DC/GC) and Sonic Adventure Battle 2 (DC/GC)
Sonic heros.
Mario and sonic at the olympic games