Ultimate Chromastone is Chromastone's Ultimate form. He can create Energy blasts, shield's and crystals. His only weakness is sonic blasts.
He has golden, or yellow, crystals, and is bigger, slightly. Spikes have grown on the arms, legs are much talller in height, the spike on his head is larger in size.
He can redirect any energy based attack, absorb nearly all types of energy, super strength, ability to make his golden crystals grow into the ground so he can transport underground through them like an underground rocket. Also, he can make energy nuclear power.