Wormhole stacking. Basically, wormholes can be exploited in such a way that if a room is coordinated enough, they can jump thousands or millions of levels at once. This gives them enough badge points to purchase more wormholes than the amount they started with, so they jump into a brand new room, buy even more wormholes, and repeat the process, except this time they jump even more. Repeat as many times as possible and this is what you get.
but how to get Wormhole ?
i don't know who much badge i have