This bar seems to be located in another dimension (I found it after wandering aimlessly around Kabukicho). A sweet old lady in kimono told me the area, which probably holds the record for the densest population of world's smallest bars, is called Gozenga. This teeny tiny bar is featured in the Catsoup comics - which were condensed into the world's wierdest and probably most disturbing film (see http://www.centralparkmedia.com/catsoup/). I'm sorry to say that, put off by the 1,000yen cover charge, I didn't go in and have probably now missed my only opportunity to walk through into this particular space/time ripple. If you somehow manage to find your way there beware, there is a very small sign outside that reads: “Welcome, attention to foreigners, if you can understand Japanese, you can enter this yellow door”.