|~ Ripperat's final words before his destruction.|
Ripperat is a Weasel/Rat-like chainsaw-themed robotic monster who appears in the episode "Forged In Steel", which is the second part of the two-part pilot episode of Power Rangers Ninja Steel.
Ripperat was sent by Galvanax to attack Calvin Maxwell, Hayley Roster and Mick in order to obtain Ninja Steel from a trophy, Calvin and Hayley tried to fight back with a racket and baseball bat, but Ripperat easily outmatch them, he then destroys Mick's Datacom and prepares to finish off Mick. But then the Nexus Prism arrives and hits Ripperrat in the side, saving them, Calvin and Hayley pull out yellow and white Ninja Power Stars from the Nexus.
Brody Romero, Preston Tien, Sarah Thompson and Redbot arrives, the Rangers then morphed with the new Yellow and White Rangers battling along, Ripperrat began to battle the Rangers, but was overpowered by the Battle Morphers in Attack Mode and he was destroyed by Brody's Red Ninja Strike Steel Slash Ninja Spin Final Attack.
Cosmo Royale use Gigantify to grow Ripperat, but right after he was enlarge, his chainsaw arms stopped working allowing the Rangers enough time to summon their new Ninja Steel Zords, Ripperat's chainsaws started working again and does battle with the Zords, he did get the upperhand at first, but was out match by the Ninja Dragon Zord's Fire Breath. He was then destroyed by the Rangers' Ninja Blasters Final attack.
Ripperrat is revealed to have a twin brother named Trapsaw, who in term is near identical to him.