This is a shamelessly derivative game that copies the mechanics of other, better kart racers and then proceeds to bungle it up. The controls are stiff and awkward, the camera is rarely centered on the action, and the power-ups serve little purpose other than decoration (your computer-controlled opponents are so terrible you'll rarely have the need to take any action to slow them up). The game's lack of originality is matched only by its artless presentation; the simplistic and repetitive graphics are abysmal, the sound effects muted and dull. And with only a bare minimum of modes to choose from and no story, there is almost nothing to engage the player outside of the boring, plagiaristic racing. Adding insult to injury, the game's maker, Destination Software, has the gall to make each DS player who is interested in wireless multiplayer matches purchase his or her own copy of the game.
What's worse, though, is the game's shameless commercialism. M&M's Kart Racing doesn't exist to provide players with a fun and interesting gaming experience, but rather simply to make us think about M&M's candies. The confection's maker, Mars Inc., ought to be paying us to play this game, not the other way around. Needless to say, this interactive advertisement will leave a bad taste in your mouth.