Ultraverse Prime/Microcosm is a video game on Sega CD where the player manipulates a titular character, Prime, essentially a teenage boy named Kevin Green bestowed with the ability to morph into a superhuman adult avatar. Prime delivers powerful punches and kicks and formulates unique winning combinations. Both player and foes can occasionally discover and utilize various weapons or items. Certain stages require adroit navigation as Prime is projected at high speeds, requiring pugilistic aerial interactions with hurdles and adversaries.
Players control the superhero Prime, a thirteen year-old boy called Kevin Green that has the power to transform into a superhero adult version of himself. Prime can punch, kick and jump, and combine these into some new moves and combos. The player as well as the enemies can also occasionally find weapons or objects to pick up and throw. Some stages are much faster as Prime flies at a fast speed and needs to punch obstacles and enemies out of the air.