JJ

J.J. is one of the three tart burglars in the Desert of Doom who appear in "The Other Tarts". He and his compatriots Grimby and Taddle steal some of the (poisoned) royal tarts from Finn and Jake. J.J. uses his rockets to escape from Finn and Jake and flies off with his Grimby and Taddle into the desert.

Appearance
J.J. appears to be a sentient video game machine, much like Beemo. Just as Beemo has the letters "BMO" printed on the side of him, J.J. has the letters "JJ". J.J.'s face has three eyes.