Torto is one of the Dome of Doom champions. He is a giant turtle that can roll like a bowling ball and and can shoot spikes from his back. He is defeated when Mr. Roboto's missiles, aimed originally at Jack, hit him. It can be assumed that he did not survive the explosion. Torto's spikes are also the cause of Mr. Roboto's destruction.
It is unknown how the past Aku's destruction affected his existence.