So far I'm like 4 hours into the game and played some hours on the party mode too.  I think this game rocks so far Sonic is finally back to his roots with this game.  Its fun and frantic and its not for nubs you gonna have to master his skillz if you want to beat this one.  The party mode is execptionally fun as well I'm surprised.  Waiting for Mario Party 8 to come out I was glad to c that the party mode is alot of fun.  Its like getting 2 games in one lol.  So far I'm enjoying this game can't wait to get farther in it.