This might be a fake. The Sonic Team logo on the back doesn't make much sense. But then again, I don't know if there was a Sonic Team logo on the back of Superstars Tennis.

Not that I care anymore, to be honest. Two Billy Hatcher tracks is a solid reason for me not to buy this game. I will buy the All-Stars racing game when the all the cast is made of real Sega stars.

Of all the possible exclusive characters on all platforms, Banjo is provably the only one I will be glad to have, but not having him will still be a must buy for me.

There was no Sonic Team logo on the American version of the Tennis game. Like I said, the back most likely a 'mock up' to show companies like Microsoft what a product can look like if they allow their property to be used in the game. If you notice, the 'Banjo & Kazooie' artwork is the same artwork Microsoft used for the cover of their game, "Nuts & Bolts".

Yeah, it does look like the art from Nuts & Bolts. The back of the box looks pretty awesome though.

I'd prefer there to not be any console exclusive non-SEGA characters in the game. This is after all Sonic and SEGA All Stars Racing, not Sonic and other guys mascots All Stars Racing.