After defeating all the most powerful beings in his universe, Jolly Saiyan started looking for a way into a new universe.  While he was exploring a strange exoplanet he stumbled upon a portal. The portal seemed dormant until he got closer; it pulled him through, changing his body and energy.  He still possessed all his powers, so his plans didn’t change. He would try to dominate the Jolly-Verse he just entered.