An incredibly bad television show, in the giant mechanical suit genre. Every single episode featured the Power Rangers being attacked by some big ugly monster. They would always start to lose, but then gain the upper hand, at which point the head evil person would make the monster grow to a huge size. The rangers would then get in their goofy looking giant robots, let the monster beat them up briefly, then combine the robots into one big robot, and kick some serious monster ass.
Needless to say, this got pretty old pretty fast, and the creators of the series did nothing to add interest to the series except to constantly add new characters and new robots.
Oh, and the costumes, special effects, and acting all sucked, too.