Kragoff next experimented with a cosmic-ray intensifier to attempt to increase his own superhuman powers but instead unintentionally caused himself to be unable to leave a state of intangibility. He had his original Super-Apes kidnap Anthony Stark and forced him to build a "cosmitronic cannon" and return him to a tangible state. He battled Iron Man, but the next time Kragoff became intangible, his atoms began to disperse as a side effect of his treatment with the cannon. Kragoff's consciousness managed to force his atoms to remain together, although his body remained in an intangible and, at times, invisible state.