"In an alternate universe, the virus known as Ligma was real and very lethal. So lethal in fact, it allowed the dead to be resurrected to become what's commonly known as zombies. By the end of 2020, only a few non-infected survived, and zombies ruled the land.

With barely any hosts to infect, the zombies grew ever more bored. Part of it's humanity and memories still remained within the dead, but some parts were lost to their brains rotting. Not wanting to become mere shells, the zombies went to work on something that could help them remember certain human features.

The first feature they wanted to remember was the feeling of nausea. (Don't ask me why.) The dead started building on what they remember a spinning wild mouse to be, using the overgrown remnants of a thriving metropolis. The first few versions did not create any nausea, so they had to rebuild and revamp everything to be more extreme. This resulted in what is now known as "The Nauseator ver 2.7182818somet". (They did not have enough brain capacity to finish the name.) The layout might break your neck, but you're already dead so what gives?

Perhaps there is hope for these unfortunate dead souls...

...I knew that snowman-thing was a clue, it seems the Holes can be used to traverse the multiverse.. interesting..."