When the heroic warriors arrive at Zagraz Mountain in the Attak Trak, the bridge of Cringer's nose is colored dark green (the same as the underside) when he says 'What's that' and wants to turn back.
When all the heroic characters are standing on the jaw bridge to Castle Grayskull as He-Man carries the new cosmic comet, the characters are drawn too large in comparison with the castle entrance.
Near the end of the story, when Zagraz tells He-Man "you had faith in me", he waves his hands about and at one point his entire hand disappears as it passes in front of He-Man's chest.