Teenage Mutant Ninja Turtles is a single-player action game. The player starts the game as Leonardo, but can switch to any of the other Turtles at any time by pressing the Start button to access the information screen. The information screen shows each Turtle's health, whatever special weapon he has obtained, a map grid of the current area, and messages from either Splinter or April. Each turtle's unique primary weapon has different speed, power and reach. When the player's current character runs out of health, falls into a fatal trap, or is run over by a Roller Car, he is captured by the enemy, forcing the player to change to one of the remaining Turtles. The player loses the game when all four Turtles have been captured. There is an opportunity to rescue a captured Turtle once in each stage beginning in Stage 3. There are a total of six stages in the game.