Rattleballs (episode)

Synopsis
Finn wants to be trained in sword fighting by an old gumball robot named Rattleballs, who lives in the junkyard.

Plot
Princess bubblegum gets scared by Finn and decides to be her protector. Bubblegum gets some eggs but, she is assisted by Finn. Three weeks later she returns with some milk, he is exhausted. Finn goes to a junkyard singing a song and playing with his grass sword. When he kicks a manikin, he encounters a hooded guy. They have a sword fight but is tripped. Rattleballs introduces himself and laughs. He gives Finn advice and farts as he walks away. Finn tries to convince Rattleballs to train while he tells an old story. After helping Rattleballs, Rattleballs decides to teach Finn the sword stuf. After training and hard work, he teaches Finn his secret techinique. Rattleballs tells Finn he could perfect his sword after ten years. Rattleballs tells Finn about his history. He was created by Bubblegum for police. Eventually, Bubblegum commands the robots to be stood still. Rattleballs finds out the truth, they were getting killed, after a while, Finn tells the princess and they surround him. The banana guards attack him but, Rattleballs defeats them and claims he's found peace. He vows to serve the princess. Bubblegum gives the guards a cube which is the form of the dead rattleballs. Later, it is revealed that Bubblegum uses Rattleballs for secret missions in the shadows.

Main Characters

 * Finn
 * Rattleballs
 * Princess Bubblegum

Minor Characters

 * Jake (mentioned)
 * Peppermint Butler
 * Banana Guards
 * Root Beer Guy
 * Gumball Guards
 * Gumball Guardians
 * Flame Princess (mentioned)
 * Snail

Episode connections

 * This episode involves Finn's new Grass Sword, which he got in the previous episode, "Blade of Grass."
 * Finn was talking about what happened since he got out of his relationship. This was a reference to his breakup with Flame Princess in the episode "Frost & Fire".
 * Root Beer Guy was seen as the head policeman. This was a connection to the episode "Root Beer Guy".
 * When Finn was sitting on the fire, he was showing no harm. This may have been because of him getting used to it when dating Flame Princess.
 * When Rattleballs has a flashback to his past the Candy Kingdom isn't completely constructed nor are bananna guards yellow showing it sometime after "The Vault".
 * At the start of the episode, Princess Bubblegum is seen wearing the same sleeping gown as in 'The Vault'.