Age of Grinders is a video game Jake and Finn play in "Flute Spell." It appears to be a convoluted turn-based role-playing fantasy adventure, similar to games like the original Final Fantasy in design. It takes up so much of BMO's memory that it does not have a save feature, and automatically resets if the user tries to have a conversation with BMO while the game is running. Finn and Jake eventually beat the game working in tandem, at which point Finn declares it "bad and boring" and "just what I needed" to take his mind off his lady drama.
In "Flute Spell," Finn discovers that the only main objective in the game is to upgrade your armor and defeat minions.
The name refers to "grinding," a term gamers often use to describe repeatedly doing tedious tasks necessary to advance in a video game, such as battling monsters to get gold and experience points to level up.
The game is an obvious parody of the Phantasy Star franchise, drawing visual elements from the fourth installment and its name being derived from Phantasy Star 2, which was grind-based in nature, requiring hours of leveling to be able to defeat certain bosses easily.
One of the characters in this game, Ako, shares the same name with Ako Castuera, who is a storyboard artist for the series.
