During the "Who is the Boss?" music number. When the Mizards are seen climbing inside a pipe. The purple Mizard was seen going in the opening of the pipe first. In the next shot, the pink Mizard who was following the purple Mizard was changed to the purple Mizard. The following shot then corrects the color of the pink Mizard into his correct color.
While in the hair forest after escaping Wack's circus, the princess is overtaken by a Headhunter. She falls and Felix asks if she is all right. In the first frame of her kneeling, she has blood on the shoulder on the left of the screen, but the next frame of her, her dress is white again.
Due to poor sound mixing, the special effects are often mixed much louder than the dialogue making the dialogue inaudible.
When Felix makes his debut at Wack's circus, there is a short shot of Wack speaking with a different voice and not in English.
The princess claims that her uncle, The Duke of Zill's face was disfigured from his experiment gone wrong. However his face look perfectly alright after the explosion took place.