M-9999 was a dark purple-colored planet about the same size as Earth. It several red-colored moons and a couple of large rock-like objects orbiting it.
History[]
M-9999 was kidnapped by Heistotron and kept inside of the robot's huge space station. The robot was created to perform the biggests heists, which it concluded to be stealing planets. M-9999 was destroyed by the surrounding space station blowing up, when Rick Sanchez defeated both Heistotron and Randotron.