Good game.

Its fun, but the freakin monkey cup is hard for me on easy!Kinda makes sense because Im,you know,9 years old.Oh,and the Monkey courses from super monkey ball are so hard.But other than that,I like it.But, I suggest A Halloween update:
New character: Sonic the Warehog
New area in the shop where you can buy soundtrack

Oh, and one more thing,could you please make a game called Mario and Sonic All Star Racing.
Another game ideal: Mario And Sonic All Stars, where All the Charecters from both series battle it out to see who wins the tournament: with extras!

Johnneno 55555 about Sonic & SEGA All-Stars Racing, v1.8