Banana Man is responsible for building a rocket ship which is similar to the one in Jake's croak dream. He traveled to the Tree Fort to borrow some sugar, but Finn misinterpreted his presence as a threat and never answered the door. Walking back to his geodesic dome home, he is seen dancing to an exercise tape. He performs the routine again at the end of the episode.
Finn tries two times to shoot him with his crossbow. The flaming arrow then flies over the house, and they find a half-built spaceship. Jake then uses the arrow to light some dynamite in the rocket. The Banana Man comes out and says that there is not enough for the rocket to work. The dynamite blows a hole in the ground, and all three fall in. They survive the fall, but end up in a pool of water. Jake believes that he and Banana Man will run into one another later in life. Banana Man's rocket ship destroyed and it lies in an underground cave full of water, which made a resemblance to Jake's croak dream in space.
Banana Man returns in "We Fixed a Truck," where he helps Finn, Jake and BMO rebuild their truck Hot Daniel. He expresses gratitude toward Finn and Jake for letting him hang out with them, and they in turn talk him up to a female Banana Guard on whom he has a crush. He winds up helping save the Candy Kingdom from a Lizard replica of Princess Bubblegum with his peel, though he winds up being arrested by his crush for public indecency. Princess Bubblegum informs BMO this is only a minor offense, though. [Source: wikia]
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