The season continues to peel back the layers of Simon’s tragedy, particularly in his interactions with Marceline and his strange relationship with his "son," Gunther (who is revealed to be the space deity Orgalorg).
The bottle episode to end all bottle episodes. Jake turns himself into a brick inside a wall and narrates a nature documentary about a rabbit. It won an Emmy. Yes, an Emmy. It is meditative, hilarious, and somehow the deepest meditation on community in the show. Adventure Time Season 6 Complete -Episodes 1-43-