The Supreme High Robotnik is a transformation that appears in the Adventures of Sonic the Hedgehog television series. It is a form that Dr. Ivo Robotnik can assume with the power of the four Chaos Emeralds.
In this form, Robotnik loses much of his clothes, being only left in his boxers and with golden gauntlets on his wrists. In addition, he becomes extremely muscular with elongated fingernails and he grows to tower-like heights. The four Chaos Emeralds also hang around his neck on a necklace.
Once, Dr. Ivo Robotnik plotted to gather all four Chaos Emeralds in order to become the Supreme High Robotnik, which could make him an unstoppable entity that could defeat Sonic and conquer Mobius once and for all.
After having successfully gathered the four Chaos Emeralds, Dr. Robotnik transformed into the Supreme High Robotnik. Hoping to finally destroy his enemies, he sent Sonic and Tails back in time to the Big Bang using the Time Skateboard. However, while the Supreme High Robotnik had the citizens of Mobius serve him, Sonic and Tails returned with various versions of themselves from different points in time. The team of heroes subsequently managed to defeat the Supreme High Robotnik and take back the Chaos Emeralds, returning Robotnik to normal.
Powers and abilities
In this state, Robotnik is granted power so great that he claims he could rule the entire universe.
By wielding all four Chaos Emeralds at the same time, the Supreme High Robotnik has direct access to all of the Emeralds' individual powers at once; With the Chaos Emerald of Invincibility, he is granted incredible super strength and invulnerability; with the Chaos Emerald of Immortality, he is successfully immortal; the Chaos Emerald of Invisibility allows him to turn himself invisible; and the Chaos Emerald of Life allows him to animate anything.
While the Supreme High Robotnik is invulnerable and cannot get killed, he is still vulnerable to surprise attacks. He will also lose all his powers if somebody removes the necklace with the Chaos Emeralds that he wears.