History Recap / SupermanTheAnimatedSeriesS3E2KnightTime

* VoiceChangeling: Superman is able to precisely imitate Batman's voice... and Robin's, for that matter. Robin was NOT amused.

* FailedASpotCheck: Lex Luthor, albeit implied rather than explicitly stated. Whatever off-screen security precautions his techs took to secure the [=LexCorp=] systems after "Ghost in the Machine" clearly failed, as a copy of Brainiac's program survived and made the jump into Wayne Enterprise's systems during "World's Finest". Of course, given that [[Recap/JusticeLeagueUnlimitedS2E11PanicInTheSky later]] [[Recap/JusticeLeagueUnlimitedS2E12DividedWeFall events]] reveal that Brainiac had been inhabiting Luthor ever since that time, this may have been intentional on his part.

* CallBack: How Brainiac brainwashed Bruce is one to both “World's Finest” and “Ghost in the Machine”. He got into Wayne Enterprises' computers due to the brief partnership with Lexcorp, whose computers he'd previously inhabited. Superman even advises Bruce to wipe his computers noting Braniac tends to leave a bit of himself behind.

** When Clark first spots the nanites on the paper while investigating Bruce's disappearance there are only three and their position resembles Braniac's symbol.

* MassOhCrap: Bane, Riddler and the Mad Hatter are in various states of panic when Supes, still disguised as Batman not only starts pushing the moai head Bane dumped on him, but then sends it flying across the room.

** Bruce Wayne's behavior while brainwashed -- and specifically the fact that he's ''smiling'' -- causes Robin to instantly suspect that something's up.
** The Mad Hatter notices 'Batman' break character three times (using super strength, super speed, and smiling) and comments on the first two, but doesn't draw any conclusions before getting distracted trying to figure out Brainiac's mind-control nanites.

* SmallRoleBigImpact: Roxy Rocket only appears in the opening of the episode, but she is the reason Superman learns of Batman’s disappearance, starting the events of the episode.
* SpannerInTheWorks: Roxy Rocket accidentally ruins Brainiac's plan by informing Superman that Batman went missing. She didn't even know Brainiac was involved.

* YouHaveOutlivedYourUsefulness: Brainiac was about to do this to Bruce before Superman and Robin stopped him.

** The Mad Hatter notices 'Batman' break character three times (Using super strength, super speed, and smiling) and comments on it the first two, but doesn't draw any conclusions before getting distracted trying to figure out Brainiac's mind-control nanites.

* VillainessesWantHeroes: The few minutes that Roxy Rocket is on screen, she spends most of them flirting with Superman.

* FailedASpotCheck: [[spoiler: Lex Luthor, albeit implied rather than explicitly stated. Whatever off-screen security precautions his techs took to secure the LexCorp systems after "Ghost in the Machine" clearly failed, as a copy of Brainiac's program survived and made the jump into Wayne Enterprise's systems during "World's Finest". On the other hand, it is not specified ''when'' the Lex/Wayne partnership started.]]

* FailedASpotCheck: [[spoiler: Lex Luthor, albeit implied rather than explicitly stated. Whatever off-screen security precautions his techs took to secure the LexCorp systems after "Ghost in the Machine" clearly failed, as a copy of Brainiac's program survived and made the jump into Wayne Enterprise's systems during "World's Finest".]]

* ArmorPiercingQuestion: Superman's "Where's ''Bruce?'' breaks right through Robin's stonewalling and tells the Boy Wonder that Superman knows enough to be trusted with the more sensitive aspects of an investigation into Batman's whereabouts.

* OOCIsSeriousBusiness: Bruce Wayne's behavior while brainwashed -- and specifically the fact that he's ''smiling'' -- causes Robin to instantly suspect that something's up.

When Roxy Rocket tears into Metropolis, she tells Supes that Batman is missing, meaning Gotham City is being overrun by crime, so she came to Metropolis to try her luck there. Supes heads to Gotham to investigate, where he finds and assists Robin (Tim Drake) with foiling a robbery. When the trouble is over, Robin is hesitant to tell Supes about what's going on, but he's immediately surprised by what the Man of Steel knows...

Another crossover episode with ''WesternAnimation/SupermanTheAnimatedSeries''.

Another crossover episode with ''WesternAnimation/BatmanTheAnimatedSeries''.

* ShoutOut: When Superman (as Batman) lifts the statue, Robin "explains" it by saying that he has been "working out". Clark Kent does the same thing in ''Film/SupermanII''.