Doorway to Hey Deze

From TheKolWiki

The Doorway to Hey Deze is located in the Right Side of the Tracks in a Bad Moon ascension, replacing Hagnk's Ancestral Mini-Storage. It leads directly to Hey Deze:

You enter the Waffle Haus and find it empty. You poke around behind a counter and find a rope ladder leading downwards. You climb down and look around -- just as you thought! Every Waffle Haus is actually just a doorway to Hell!