imprisoned by B-Bop and the others pretends to be willing to help them invade Earth to get a chance for revenge. He pilots a ship called the Doom Jax which is impervious to Martian weaponry. He has been "destroyed" three times in the series run, but always manages to come back. Humanga – A giant alien villain who is the only player of an alien game called Toget. Humanga has won as many games as the Butt-Uglies themselves. Infi-Knight – A four-armed robotic warrior created by Damage to speed the Earth invasion along. Probably the Butt-Uglies' most powerful enemy. Koo Foo – The last surviving member of an alien race. His race was an evil species that tried to conquer the whole universe 2000 Earth years ago before mysteriously vanishing. His crashed ship was submerged in the desert and believed to be a pyramid due to its shape. Muldoon accidentally released him at the same time the Martians arrived to destroy him. He took Angela to save her from danger but the Martians thought he was kidnapping her. It was eventually revealed that Koo Foo was not evil like the rest of his kind and had left the swarm of ships before crashing on Earth. He says he does not want to fight or hurt anyone. The Martians do not believe him until Angela points out that they themselves are different from almost all of their species. Koo Foo leaves in peace. He reappears as a one-off at Do-Wah's birthday party in the comic series. Gorgon – A fire-breathing lizard-like alien characterized by the ability to change into or possess others and a TERRIBLE smell. He speaks with a hiss. Klaktor – A Reconabot (portmanteau for "reconnaissance robot") that the Butt-Uglies defeated in the first episode, though he reappeared later in the series. Can fall apart and reassemble himself at will. This trait turned into a common sight gag; his action figure is equipped with ejectable arms. Episodes Merchandise Video games There were also three video games based on the series named Butt Ugly Martians: Zoom or Doom for PlayStation 2 and GameCube, Butt-Ugly Martians: B.K.M. Battles for Game Boy Advance, and Butt-Ugly Martians: Martian Boot Camp for PC. The franchise also had a toy line by Hasbro. Home media As part of Universal's broad arrangement for the franchise, Universal Studios Home Video obtained worldwide video rights to the series