The 1993 film Teenage Mutant Ninja Turtles III features the Ninja Turtles travelling back in time to feudal Japan. The 1993 The Legend of Koji episode of the 1987 Teenage Mutant Ninja Turtles TV series also features time travel to feudal Japan.
In the 2003 animated series, Japan played a more important role during the series's fifth season. It was the home of the Ninja Tribunal, where they kept a monastery called The Lap of the Gods. They had recruited the Ninja Turtles and 4 other human fighters to train there and combat the reincarnation of the Tengu Shredder.
In the 2018 animated series, The Shredder and The Foot Clan nearly wiped out all of Japan through their terrorism before being forced back and Shredder being split into many pieces across the globe.
- 1987-1996 series
- 2003-2009 series