Other mistake: Supporters cheer Ishizaki when he is trying to break the birdcage tactic. One of the guys who screams at him though is wearing the "S" jersey Shuutetsu supporters wear. (00:17:55)
Other mistake: When Teela is at Snake Mountain, she overhears TrapJaw saying how Skeletor's electrical creature will control all of the machines at the palace. When Teela returns to He-Man, she says that the creature Skeletor created is called Byte. There's no way for Teela to know the name of the creature, since TrapJaw never referred to it by name. (00:14:24 - 00:15:20)