Young Hoshino, curious about the meteors, visited Sir Yesterday, the first scientist to find one of the meteors, to talk about them. Sir Yesterday discussed the potential dangers of putting two similar meteors in proximity to each other. When Hoshino went to Science Patrol headquarters to warn against storing the meteors together, Fuji attempted to force him to leave. Moments later, Bullton had formed. Later, for his quick-thinking in attempting to warn the Science Patrol, Hoshino was awarded honorary status as a Science Patrol member.
When Bullton first formed, several other extradimensional warps were created. Within the Science Patrol headquarters, staircases were warped and extended infinitely into space; some rooms were inverted; some indoor regions appeared to be outdoor regions; and spatial gateways were opened to other, more abstract environments. Eventually, the Science Patrol combatted a number of these warps, realizing that walls no longer constituted real barriers, and the same points of departure to the outside were also points of return to the inside of the headquarters.
Bullton attacked first by extra-dimensional juxtaposition. Planes in flight slid on the ground moments later, their fuselages exploding. Tanks were hurled through the air and destroyed. When Ultraman appeared, he attempted to leap into attack against Bullton, but suffered from a temporary stoppage of time and a warp of space to deflect his leap. Since that Bullton can reality warp, he then opened an extra-dimensional space underneath Ultraman and trapped him within the Earth. Slowly, the effect wore off and Ultraman was able to escape. Realizing the terms of the battle, Ultraman used his own temporal-spatial powers. Spinning rapidly, Ultraman created his own temporal-spatial rips and tears, damaging Bullton's antennae. Ultraman attacked Bullton with his Spacium ray, but the ray did not destroy Bullton outright, because the entire giant-sized mass was merely a projection from the two small combined meteors. But once the giant-sized body of Bullton was destroyed, it left the small meteoric mass displaced a short distance away, temporarily exhausted. Ultraman seized the opportunity, picked up the small creature, and crushed it within his hand.
Bullton was one of several incidences of Psychedelic to appear in the Ultraman Series.
Falling to the distant planet of Boris, Bullton, in its meteorite form, is found by human research scientists, who then take it back to their lab at Belargo City for further study. Bullton then awakens in its true form, and uses its time and space bending abilities to summon forth multiple giant monsters from across time and space. Resulting in the mass destruction and deaths of many human colonists, within and beyond Belargo City.
Sometime afterwards, the crew of Space Pendragon arrive at this location and disturb Bullton from an underground resting place, who then summons the monster Frogros (originally from Ultraman Nexus) in an attempt to rid the intruders. Frogros is defeated, forcing Bullton itself to appear and attack.
Rei then summons his own monstrous allies of Gomora and Litra to battle Bullton, who in retaliation resurrects the previously killed Red King, Telesdon and Neronga for assistance. Despite outnumbering our heroes, Bullton and his monster soldiers are finally defeated and destroyed.
Unlike its 1966 appearance, the Bullton seen in Ultra Galaxy was done with computer animation over puppetry effects. It is also revealed that in addition to the monsters, Bullton was also responsible for Rei's arrival on Boris, perhaps because despite his appearance, Rei is actually a Reiblood alien, though one that was still an infant and taken in by survivor Karen Mikura at that time.
During the continuous range of the show, several Bullton-like creatures appears, such as Priz-Ma of Return of Ultraman and Dechimonia of Ultraman Tiga.