When Teela says 'The Shadow Beast and I are old friends', the close up of the Shadow Beast does not match the shots preceding and following it in which it is holding He-Man in the air with one arm.
Evil-Lyn's wand keeps changing in length during each scene it is used in.
When the walls begin to move in on He-Man and Battle Cat, there are different amounts of space left when we see Battle Cat pushing back the wall and when He-Man is doing the same in the next shot.
As He-Man and Battle Cat enter the top of Snake Mountain, his sword is visible on his back in one shot, and in his right hand in the next.
The background crowd shot remains the same during the sequence in which the Shadow Beasts puts Teela down, making for an awkward jump cut.
As Pretty Kitty walks towards the Royal Palace, she comes to a wall with a doorway that appears to merge into the background wall. The animation overlays don't match up.
When Skeletor says, of He-Man, "he won't leave without her", he momentarily has two sets of bottom teeth.
When Adam transforms into He-Man the re-use of the standard animation cuts too late, such that he can be seen starting to gesture towards Cringer, as if to turn him into Battle Cat--even though he isn't there.
When Cringer says 'I wonder what she's doing after the show', referring to Pretty Kitty, just before the scene ends, his mouth disappears.