M&M's Kart Racing is a kart racing game in which each player controls one of five sentient M&M's (Red, Yellow, Blue, Green, or Orange), who serve as the game's playable characters.[1][2][3] The remaining characters are all controlled by artificial intelligence (AI).[3][4] Although a player's character has no effect on their performance,[2][4] the racing vehicles vary in speed, acceleration, handling, and braking.[3]
All of M&M's Kart Racing's game modes are centered around at least one player racing across one or more race tracks based on unique environments, including a chocolate volcano, a chocolate factory, a forest, a farm, a sea carrier, a house, a city, the Arctic, an alien spacecraft, and a colosseum based on that of ancient Rome.[2][3][5] The Wii version of the game features a total of 15 tracks.[6][a] Players can collect chocolate coins scattered across each raceway; these coins can be used to unlock additional vehicles in the garage, such as a hovercraft and an SUV. Each player controls their vehicle with a Wii Remote, tilting to turn and pressing a button to accelerate.[1] While on the starting line, a player can quickly spin their Wii Remote for a turbo boost that lasts between three and five seconds. Moreover, the B button can be used to drive in reverse after the player's vehicle has come to a complete stop.[7]