User blog comment:'Sonic the Hedgehog'/Game idea: Mario and Sonic Adventure: When worlds collide/@comment-3551372-20110528070838

Uhh, it's cool, but, why don't you add more to the plot and gameplay, im confused as to how it ends. Does Tails' invention get fixed? How do we know what happened. If you want a game idea, "Sonic", Then finish it.