Possibly the single most inappropriate episode in the entire Power Rangers franchise. It means to match the tone and general story line of 1979's Alien (all but for an alien being shoved down a spaceman's throat), where a nearly indestructible alien biped picks off humans within the claustrophobic confines of a spaceship.
This is not your typical Power Ranger monster, an exaggerated bad guy that can, at times, be downright silly. (Think Elgar in Power Rangers Turbo.) This is a terrifying predator (looking, in fact, a bit similar to the alien predator in 1987's Predator). It strikes from darkness. It strikes without warning. Blast guns don't seem to hurt it, and its victims get wrapped in cocoons like that of spiders, stored for later consumption.
If TV is sometimes a babysitter just to keep youngsters distracted for a while, then this episode is a babysitter from Hell, with every potential for giving some of its younger viewers nightmares or night terrors.
The episode basically fails its target audience by striking too close to home to its Alien source material.