Motor Mash is a top down cartoon racer for 1 to 4 players by using a multi-tap or by sharing the joypad similar to Micro Machines 2.

You can choose to play single player practice, Knockout Races, Single Player Tournaments, Multi Player Tournaments, Beat the Clock and Team Knockout. Players can select from 12 characters and race across level with different themes. There's jungle, aztec temples, inner city, wild west, nightmare, arctic themes. Each of the themes have unique hazards like bridges, crossing trains, oil wells, cyclones, snowmen and killer plants.

In each race the goal is to leave your opponents far behind so they go off screen. You can by pushing them off bridges or into hazards. When there is one player left, that player wins and all other players return to start again from that point. Each time credits are awarded depending on how long each player lasted on screen. Lose all credits and you're out of the game, last man standing wins the race.