Teenage Mutant Ninja Turtles: Turtles in Time, released as Teenage Mutant Hero Turtles: Turtles in Time in Europe, is an arcade video game produced by Konami. A sequel to the original Teenage Mutant Ninja Turtles (TMNT) arcade game, it is a scrolling beat ’em up type game based mainly on the 1987 TMNT animated series.