Original Airdate: October 23, 2013
Robin is upset that he has no arch-nemesis, so Starfire comes to save... or ruin the day.
- Arson, Murder, and Jaywalking: Starfire shows off her evilness by blowing up Robin's hair gel supply, the moon, and drinking milk out of the carton.
- Big "NO!": Robin lets a long one out as his year's worth of hair gel is blown apart by Starfire, making his spiky hair go limp.
- Cardboard Box Home: Starfire's secret lair is a cardboard fortress in the front yard that has tubes that not only fire real lasers, but also dispense killer robots.
- Car Fu: Robin uses his cycle to deliver wheel punches to Cinderblock, then on Starfire at the end.
- Cute Is Evil: Even as a villain, Starfire can still look cute as a button.
- Detonation Moon: To show how evil she's become, Starfire casually blows up the moon.
- Evil Laugh: When Starfire tries an evil laugh, with the first two being cheerful giggles, she settles for the one that sounds more like she's gargling water.
- Implied Love Interest: Starfire may have feelings for Robin, as she is seen standing behind him with a flower, sad, while he is kissing the moon.
- Running Gag: One of Robin's hair gel containers (that didn't get blown up by Starfire's starbolt) rolls up to Starfire and Robin, who looks relieved until Starfire destroys it and levitates away smiling.
- Saying Sound Effects Out Loud: Starfire makes booping noises as she presses the buttons which activate her defense mechanisms in her fortress.
- Shout-Out: At one point, Robin styles his hair to look like Bart Simpson, Goku and Sonic's.
- Tempting Fate: The team doubts Starfire can even be a proper villain since she can't even drink milk out of the carton. She proves them wrong over the course of the episode.
- Temporarily a Villain: Starfire.
- Tomboyish Ponytail: Starfire when she wears her villainous costume.
