Teenage Mutant Ninja Turtles III: The Manhattan Project on the NES is regarded as a collector's item by retro video game enthusiasts. The third game in the TMNT series for the NES, it was published in 1991. The game contains side-scrolling action gameplay and a variety of stages located throughout Manhattan. The game garnered great reviews and was well-liked by players, but it was not mass-produced, making it difficult to locate now. The game's connection to the popular TMNT franchise increases its collectibility. The rarity and worth of Teenage Mutant Ninja Turtles III: The Manhattan Project on NES will depend on factors such as the quality of the game, the completeness of the packaging, and the demand among collectors at any particular period, as with any collectable item.