Idea;
Multiuniversal Residual Tethering

As the name implies, after That Guys first encounter with Xeduhar, starting the merging of the various That Guys to the one universe, That Guy is going to deal with a problem of his own

He is going to warp to different universes and back, with each time leaving him there longer, and occurring more frequently. This ups the stakes, and allows for a sort of clock, counting down to That Guy’s inevitable “final warp” sending him to a new universe, and not warping him back to his own.