The Trouble with Shellshock - S1-E22
Continuity mistake: The very first time we see Shell Shock he is missing his signature traffic lights. (00:03:25)
The Trouble with Shellshock - S1-E22
Character mistake: About halfway through the episode, we see Billy, Zack and Kimberly are frozen because of Shell-shock. Towards the end when Jason and Tommy are in the Zords fighting Shell-shock, the Yellow Ranger comes running with the flowers that unfreeze the Rangers and Zords. The Yellow Ranger yells "Jason, Billy, I have the Diandra flower!" She should have yelled Tommy's name instead of Billy since we know Billy is frozen and that Tommy is the one helping Jason fight Shell-shock.
Suggested correction: She doesn't know that. She was sent running after they were frozen.
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)