The appearance of a stranger in the Candy Kingdom causes Finn to grow jealous.
- Dark Is Not Evil: Lampshaded several times when Jake and Finn are analyzing Ricardio.Jake: Some people look wicked but are super nice.
- Gross-Up Close-Up: There's a close up of Ricardio grinning evilly as he announces his plan to cut out Princess Bubblegum's heart and "make out with it".
- Hijacked by Ganon: Ricardio was created by The Ice King's magic.
- Organ Autonomy: Ricardio is a cartoony animated heart. The heart of the Ice King, to be precise.
- Talk About That Thing: After Finn's outburst at the party, Jake takes him aside with the excuse "Hey Finn, I need you to help slay these peanut monsters at the bar."
- Wicked Heart Symbol: Ricardio the Heart Guy is an actual red heart with a face, arms, and legs. He manipulates Princess Bubblegum with the intention of cutting out her heart.