- Abnormal Ammo: Me-Mow shoots live rattlesnakes as poison darts.
- Anthropomorphic Food: The sentient sandwiches that BMO makes for Jake, as well as the ingredients that go into them.
- Bottomless Magazines: Me-Mow's blowgun seems to contain an endless barrage of rattlesnakes.
- The Bus Came Back: Me-Mow returns since her first appearance in Season 3.
- Butt-Monkey: NEPTR spent three months out in the desert building a model city that gets wrecked by BMO and then he gets roughed up by BMO and sent off into the desert again.
- Follow Your Nose: Jake is literally pulled into the kitchen by the smell of BMO's "special sentient sandwiches".
- Food as Bribe: BMO uses the sandwiches to get Jake to be his horse and Finn to be his opponent, "Jack Rabbit Johnson".
- I Got Bigger: Me-Mow, who was only a few inches high in her first appearance, is now taller than Finn.
- Paper-Thin Disguise: Finn's costume, which is basically just two eye-patches and a fake mustache, is enough that Me-Meow can no longer recognize him as Finn (although to be fair, a few years have passed since they last met).
- Rule of Three: Jake's transforms into a horse three times, putting more effort in with each time (though he doesn't look exactly like a horse as in the title card).
- Running Gag: BMO painfully digging his boot spurs into Jake's side.
- Sapient Eat Sapient: The sentient sandwiches that get eaten by the other characters.
- Satiating Sandwich: And sentient, to boot.
- Shout-Out: Me-Mow's second cell looks like a very cramped version of Magneto's Tailor-Made Prison meets Syndrome's computer station.
- Tastes Like Purple: According to Jake, sentient sandwiches taste like alive.
- Tempting Fate: Me-Mow declares at the end that the puny cell (where the bars are about three feet apart) won't hold her, so they throw her into a much more secure one — a solid cage with only a few air holes suspended by a rope a few feet away from the end a narrow walkway inside a sealed dome.
- "Wanted!" Poster: BMO posts some as part of his game. Me-Mow thinks they're real and nabs Finn thinking he's a real outlaw. At the end of the episode, another bounty hunter tries to catch Finn.
- What Measure Is a Non-Human?: Played for laughs with the sentient sandwiches.Jake: Aw yeah, it tastes alive!
