What is this? No, Kranion isn’t going to the bathroom after holding it in for 24 hours.
Marrow Prime scoped out an ancient artifact, on his time and space travels that lets the user inflate, explode, and become a large shapeless shadow. This is the Void Gem. Kranion gets to use it later on of course (not in this game though).
While the drill handed cyborg form Neo Kranion is Kranion’s ultimate form, when Kranion uses the Void Gem he becomes the most powerful being in all of fiction and non-fiction. He could blink and destroy all of existence across all universes if he wanted to. He can also fuse all timelines or just make it so existence never happened in the first place. Thankfully he’s not that evil, he’s just a dick, and he would never do anything like that. Marrow Prime and Kranion’s ultimate goal is instead to make everyone across time and space (including you!) build them an amusement park. They get to skip all the lines which is why they can’t be allowed to win!