Ultimate Hugh

Ultimate Hugh is the final and most powerful form of Hugh Neutron.

An Epic Chat 8: Isabelle's Communist Tournament
Ultimate Hugh made it's first appearance during Hugh Neutron's fight with Orange Sans. Hugh Neutron was being destroyed by Orange Sans, even Cool Hugh couldn't keep up. After seeing a vision of Judy Neutron, Cool Hugh evolved even further into Ultimate Hugh. Ultimate Hugh withstood every one of Orange Sans' attacks. One quick swipe was enough to utterly destroy Orange Sans.

Later in the tournament, Ultimate Hugh was unleashed yet again during Hugh Neutron's fight with Gru. Gru was too powerful for even Ultimate Hugh. Gru was so powerful in fact, that Hugh Neutron had to fake his own death to get out of that situation.