In Mighty Morphin Power Rangers: Rita's Rewind, the team faces off against a robotic reincarnation of the Power Rangers' long-time nemesis. Robo-Rita has conjured a portal to send herself back in time so she can finally vanquish the Power Rangers by forming an alliance with her younger self.
https://www.youtube.com/watch?v=s7wSPJZPqas
https://www.youtube.com/watch?v=r-aXO5U4oWs
https://www.youtube.com/watch?v=vVNQhcYtO34
