If you are looking for a Mario Kart-like game for your child's mobile device, Sonic All-Stars racing is great racer. It's your basic cartoon racer with characters like sonic and many other Sega characters. There is virtually nothing inappropriate in the game. There is cartoon violence, but this consists of throwing cones on the track like banana peels for cars to spin out of control or throwing a cartoony bomb at a player that simply flips the cart into the air. There are a couple of glitches and it's not the best designed game, but kids looking for a colorful racer will love All-Star Racing.