The top of the Sorceress' headdress is colored orange instead of white by mistake when she's turns the fire-jewels into a ray-fuser.
After Man-At-Arms has been changed back to flesh and blood, his midriff is colored orange instead of green.
The stalactite that He-Man grabs to escape from the lava flow is much smaller when he pulls it down and suddenly enormous in the next.
When He-Man cuts Beast Man's whip in half, it goes from tiny to long again between shots.
After Skeletor pushes Beast Man out of his way during the skirmish with He-Man inside the Collector, there is an awkward shot of Skeletor holding on to Beast Man. What is more, Skeletor suddenly wears an uncolored wristband on his left arm.
When everyone looks over Man-At-Arms's petrified body in the lab, in the panning shot Teela's hands are white. When Adam enters, they are flesh-colored.
After He-Man frees himself from the rubble of Colossor, all the Heroic Wariors cheer and He-Man appears to be cheering his own actions the loudest.
The skull on top of the Havoc Staff is too small when Skeletor first enters the Collector.
While Queen Marlena is using technology to monitor the petrified form of Man-At-Arms, Teela's hands are colored white rather than flesh tone in one shot.
The Heroic Warriors have never seen the Collector before as they have no idea Skeletor is behind it's attack. But when they create a Ray Fuser in the Sorceress' laboratory He-Man knows all about the working of the two rays in the Collector's cockpit.
Skeletor contacts Evil-Lyn on the view-screen of the Collector and she informs him that He-Man has visited Castle Grayskull and is now looking for the Fire Jewels, two things she has no way of knowing about.