Sonic and All-Stars Racing Transformed was announced for the 3DS and people compared it to Mario Kart 7 as there are flying and underwater sections in the game. A more accurate comparison would be to Diddy Kong Racing, but based on the proximity of the releases, All-Stars Racing seems a little too inspired by Mario Kart.
But that’s not what I believe, and Jem Lee, the producer of the game doesn’t believe it either. When talking about the flying parts in Mario Kart 7, he said:
…although it’s kind of flying, it’s more falling with style because we’d discussed something similar to that in pre-production as we were trying to work out how to get these three modes in and we called it falling with style as you’re always falling but you have some choice. Whereas the driving under water… that’s not boating. So what they have is a kart game with additive options which are really well built on and add to the experience but we’ve gone away with that in what we were doing.
Of course, the producer of the game isn’t going to bad-mouth a game they’re producing. But even so, to those who were quick to dismiss the title, give it the benefit of the doubt. I think there’s something to it.