Starts off fun but turns into a little bit of a convoluted mess near the end. My least favorite level has to be the boss level of stage 6. You're trapped between Metal Sonic and Doctor Eggman. Can't get to close to Metal Sonic or he'll electrocute you or if you get ahead of him he'll use supermode. Can't get close to Eggman because he's firing an instant kill laser. It was very frustrating. Still had fun, though.