"Turtle Power" is a catchphrase first used by the Ninja Turtles in the 1987 TV series.
In TMNT[]
Cartoons[]
The catchphrase is mentioned in the theme songs for the 1987 TV series, the 2012 TV series and Rise of the Teenage Mutant Ninja Turtles. It is also used by the 2003 Turtles at the end of Turtles Forever. They are also shortly sung by the 2018 Turtles when they sing their own theme song in the Nickelodeon YouTube Acapella video.
Film[]
It is used by the CGI Turtles after the climax of Teenage Mutant Ninja Turtles: Out of the Shadows, as a rallying cry and it's used in the song made for the movie as well.