Tropes
- Actor Allusion: Flame King and Don Jon have a long, random fist fight.
- As You Know: Flame King boasts that he cut a deal with Don Jon to be freed for Flame Princess' hand in marriage. He's whispering this in an aside to Don, who says he already knows.
- Bitch in Sheep's Clothing: Ursula.
- Bittersweet Ending: Flame Princess gets back her throne and Cinnamon Bun swears to serve her. However, Finn is forced to admit he blew his chance with Flame Princess.
- Bodyguard Crush: Cinnamon Bun is Flame Princess's knight and in the end, he confesses his love for her and she reciprocates his feelings. He does this in front of Finn, who was trying to get back together with Flame Princess the entire episode.
- Brainwashed and Crazy: Flame Lord mind controls the citizens of the Fire Kingdom to take over.
- Call-Back:
- Flame Lord, Flame King's friend, was one of the wizards seen in "Wizard Battle".
- Cinnamon Bun's friendship with Flame Princess blossoms into something more.
- Character Development: Cinnamon Bun is much smarter and more heroic than he once was, to the point where he outdoes the distracted Finn in heroism.
- Contemplative Boss: Flame King comments on it:Flame King: Man, I love staring out over things.
- The Dragon: Flame King has the Flame Lord break him out of his prison and help him take over the Fire Kingdom.
- Foreshadowing: Cinnamon Bun doesn't take too kindly to Finn's advances on Flame Princess, foreshadowing his feelings for Flame Princess.
- Evil vs. Evil: Flame King and Don John can't work together for too long before going at each other's throats.
- The Guards Must Be Crazy: Even though they could capture Cinnamon Bun as well, the guards allow him to leave if he manages to outright them one on one. Justified by them being mind controlled by Flame Lord, who himself seems to like fist fighting.
- Hoist by His Own Petard: Flame King and Flame Lord have a brawl when Flame Princess refused to marry. Flame King end up knocking out Flame Lord, disabling his mind control over the flame citizens.
- Karma Houdini: Ursula gets zero comeuppance for poisoning Flame Princess or it's uncertain if she actually got some.
- Leaning on the Fourth Wall: Subverted. Flame King goes into a Mr. Exposition about his plans to possibly the people watching the episode, only to show Don Jon stating he knows all this already.
- Leeroy Jenkins: Finn, due to his obsession to get back with Flame Princess, does things that aren't part of the plan and also jeopardizes Flame Princess' safety.
- Love Makes You Dumb: Finn is so focused on impressing Flame Princess and getting back together with her that he becomes incompetent and does more harm than good.
- Mind-Control Eyes: When Don Jon brainwashes the Flame Kingdom, they have deep green eyes with maddening spirals.
- Nice Job Fixing It, Villain: Flame King gets into a fight with Don Jon and knocks him out, breaking Jon's trance on the citizens of the Flame Kingdom in the process and allowing the heroes to turn the tide.
- Our Demons Are Different: Don Jon resembles a round goat head demon, and his blue flames cause people to go Brainwashed and Crazy.
- Sealed Evil in a Can: Flame King breaks out his prison, but is imprisoned again by the end of the episode.
- Ship Sinking: This episode's entire purpose was to make it clear that the Finn/Flame Princess ship was not going to happen.
- Shout-Out:
- Don John shares his name with the aristocratic villain of Much Ado About Nothing.
- The fist fight between Flame King and Don John is a reference to the one between Nada and Frank in They Live!, who were played by Keith David and Roddy Piper, who voice the two characters here.
- Small Role, Big Impact: Ursula DISSAPPEARS after poisoning Flame Princess! And she's responsable for everything!
- Took a Level in Badass: Cinnamon Bun is now a competent warrior instead of a dimwitted Manchild. He actually more of a hero than Finn in this episode. It's implied that living in the Fire Kingdom has fully cooked, meaning he's no longer half baked.
- Wham Episode: Flame King escapes from his prison, Flame Princess is being forced to marry someone called the Flame Lord and any chances of Finn getting back with Flame Princess are utterly dashed by Cinnamon Bun of all people.
- What Happened to the Mouse?: Ursula dissappears after poisoning Flame Princess.
- Worf Had the Flu: Flame Princess, a powerful fire elemental, was drugged before the takeover. This weakens her and impedes her fighting ability.
