Teenage Mutant Ninja Turtles Smash-Up is a fighting game for the Nintendo Wii and Sony PlayStation 2 video game consoles. It was released in North America on September 22, 2009 in celebration of the 25th anniversary of the Teenage Mutant Ninja Turtles franchise. The game is published by Ubisoft and is developed by former members of Team Ninja (responsible for the Dead or Alive and more recent Ninja Gaiden games) and Game Arts, who worked on Super Smash Bros. Brawl in cooperation with Mirage Studios. The character roster was decided by members of Mirage Studios, and the game's storyline is written by Peter Laird and Matt Leunig.