Teenage Mutant Ninja Turtles II: The Manhattan Project is a beat 'em up game released for the NES in Japan. Unlike the arcade game and the US NES release, this version has a different storyline and is distinct from the other games in the franchise. It features updated visuals and gameplay mechanics, showing Konami's dedication to providing different experiences across regions. Konami developed and published the game. The game maintained the side-scrolling beat 'em up gameplay with the four turtles and included some elements not present in other versions.  This game's success was a regional phenomenon, bolstering the NES library in Japan with another TMNT title.

Teenage Mutant Ninja Turtles II - The Manhattan Project (Japan)

Teenage Mutant Ninja Turtles (USA)