Simplify the following text for a Grade 9 native English-speaking person.
Original: Spacecataz is a failed spin-off from the animated series Aqua Teen Hunger Force ( ATHF ) , focusing on the Mooninites ( Ignignokt and Err ) and the Plutonians ( Oglethorpe and Emory ) â '' all recurring characters on ATHFâ '' who battle with each other in outer space with pranks and practical jokes .
Simplified: Spacecataz is a failed pilot for a show starring the reccuring Aqua Teen Hunger Force characters the Mooninites and the Plutonians .