After leaving Gamejolt, he wondered the multiverse, reeking havoc and ruining timelines, which the time patrol would eventually fix. His heart full of anger and hatred that these new timeline's creation had caused the destruction of his old world. Eventually, this hate and anger would cause him to unlock darkness chronos. By using this power to destroy more and more, it would grow and take over all of his body, allowing him to become stronger the more he killed. Eventually he would decide to come back to Gamejolt to destroy it, a declaration which was witnessed by G.J.Gaster who had melded with the void. He rushed back to Gamejolt to warn them but his message was in vain. Null would return to Gamejolt and the events of

https://youtu.be/2NeSO_Qxhb8?si=RU4gZzhGXcYHul9e

Would take place, except characters like the temmies, and Tk nova aren't in it and everyone but Pepper eventually got absorbed by Null. After teaming up with Ozymandias and his remaining teammates, Pepper convinced Cros to come back and eventually they worked together to defeat Null. As his darkness took hold he absorbed Haro once more giving him access to his supply of chronos which he hadn't noticed with so many other people absorbed. Again they seperated but their fusion had given Null the experience with Chronos to develop it himself. Afraid of how powerful he could get with full access to chronos, Cros killed him, Ending Nulls story.