The Trouble with Shellshock - S1-E22
Revealing mistake: When Trinni is on top of Shellshock, we see him fall down and it is a model of the yellow ranger on Shellshock's head. (00:16:10)
Green With Evil (1): Out of Control - S1-E17
Revealing mistake: Goldar smashes some rocks that bounce around and act a lot like polystyrene. (00:15:00)
Green With Evil (1): Out of Control - S1-E17
Continuity mistake: Tommy throws putty onto some boxes and takes a stance with his arms raised. Camera cuts and his position has changed completely. (00:06:45)
Continuity mistake: When the Rangers first appear against Genie, he shoots rods at the rangers which stick in the ground, he then fires a string type substance at them. However the rods have disappeared. (00:11:40)
Continuity mistake: When the Red Ranger is being held by the giant monster, his right arm goes from trapped to free and back between shots. (00:16:20)
Continuity mistake: At the start, the blue mixture in the "cake-o-matic" appears instantly. (00:00:10)
Green With Evil (1): Out of Control - S1-E17
Continuity mistake: In this episode, the rangers call on the zords and form the tank mode. We then see the Triceratops traveling over the desert again. (00:16:00)
Suggested correction: This isn't a continuity mistake. The Triceratops forms the legs and are the wheels of the tank mode. That's the shot of the left leg of the tank mode's (i.e. the Triceratops) tracks rolling along the ground.