Continuity mistake: When Roberto is looking at the team having a laugh with the still injured Ishizaki, there are 10 of them in the first shot with no keeper included and 10 including the keeper in the second. Both are wrong though, since Ryo has a substitute that is playing, so should be 11 players all along. Later in the episode when they run for the special training, it's 12 people, with Ishizaki still sidelined, but in the close-up of Roberto's foot you can see them run past, and it's 11 players. (00:07:05 - 00:10:10)
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)