Deliberate mistake: Pre Vizsla's appearance in the hologram doesn't match up with his appearance in the previous and succeeding episodes, as he's wearing clone armour covered with a cloak that has a different symbol on it. This is because when this episode was being produced, Vizsla's final character model wasn't complete yet. (00:16:25)
Star Wars: The Clone Wars (2008)
1 deliberate mistake in season 2
Starring: Dee Bradley Baker, Matt Lanter, James Arnold Taylor, Tom Kane
Mystery of a Thousand Moons - S1-E18
Continuity mistake: In the previous episode, the Republic troops blasted huge holes into the Separatist lab to enter it. In this episode, in which the highly contagious airborne virus is unleashed into the facility, the holes are conveniently nowhere to be seen, so it can't get loose onto Naboo.
Mystery of a Thousand Moons - S1-E18
Obi-Wan: Very impressive. You just destroyed seventeen defenseless battle droids without suffering a scratch.
[Another battle droid falls apart.]
Anakin: Eighteen, actually.
Trivia: When Sy Snootles kills Ziro the Hutt, he mumbles "What a world," a reference to The Wizard Of Oz.
More questions & answers from Star Wars: The Clone Wars
Answer: I guess that 1) the King assumed that Ventress' droids were meant to capture the Jedi, not kill him outright. When she yells at OOM-224 to shoot Yoda, she evidently failed that expectation. 2) Sending out a bunch of Droidekas after it is plain that Master Yoda has clearly won is not a sign of good sportsmanship, either.