During the first duel, the Trebor grabs his opponent by the forearm, then when the camera cuts to another angle, he is suddenly holding his opponent by the wrist instead.
After Buck and Wilma fight off the four ships attacking the Deputy Minister's ship, he agrees to go to New Chicago with them. As the three approach Earth, the Deputy Minister's ship is gone and three Starfighters are seen approaching.
Dr. Albert (Robert Lussier) shows Wilma 'an old-fashioned laser gun.' It is clearly a hairdryer complete with electrical cord.