Recently I noticed that while Captain Randor is fighting Keldor, he has couple scenes where animators have a small mistake with his colors.
When we see Randor enter the Hall of Wisdom, he is clearly wearing pants. But during his fight-scenes with Keldor, there are couple shots where his legs are colored with skintone-color, giving the illusion of Randor fighting pantsless.
Funny thing is, that between these three scenes, the animators remember to color Randor's legs correctly. So it never appeared back-to-back scenes this mistake.