Bowser

Bowser is a Dragon God of immense power. He was once a demon in the makai realm but had aspirations of becoming the ultimate dragon god. Since then he has absorbed the energy from countless different sets of dragon balls giving him vast reality warping capabilities and nigh undefiable battle power. Enraged by the prospect of a Dragon God superior to himself, Bowser challenged Lord Rasetsu.

Giga Bowser
When bowser gets extremely pissed off he transforms into Giga Bowser, a titanic hulking behemoth of extraodinary power and insane fighting capability. Bowser used the power of his Giga form in his challenge against lord Rasetsu. In this form his body becomes as dense ass chun li's thigh's and his shell holds more mass than the  almegaverse's dimensional walls. Giga Bowsers power is constantly rising in this force by Omniplex^10^100 with every passing instance, and his mass and density increase even faster. He becomes bigger and bigger, to the point where Rasetsu thought that he may reach the meta hierarchy itself if he allowed him to grow to the outer most extent of his devastating power.