Mighty Morphin Alien Rangers

Mighty Morphin Alien Rangers is a "Power Rangers" mini-series. The story takes place after the end of the third season of "Mighty Morphin Power Rangers". A sequel called "Power Rangers Zeo" was started in 1996. Its it a based on Super Sentai series "Ninja Sentai Kakuranger".
During fight scenes (and during the opening of the show) an alternate version of the MMPR theme song was played, saying "Go Go Alien Rangers" instead of "Go Go Power Rangers", although the premiere episode "Alien Rangers of Aquitar" still uses the "Go Go Power Rangers" theme. It is season 3.5 of the Power Rangers franchise.