In the "Post your import collections" thread I noticed that aside from me, only DDcecil and intvgene list having the game.

If you import Playstation games, GET THIS GAME NOW. While I got it in the mail a couple of weeks ago, I just hooked up my JP-compatible PSone again last night and fired up IS for the first time. Holy Cow! Very cool. Psychedelic. Like a cross between Tempest and Gyruss and two hits of acid. Your shooter remains stationary at the bottom of the screen, while the "tube" rotates. Enemies fly down the tube from behind you (like Gyruss), and then come back at you, sometimes shooting. You've got twelve different weapons at your disposal. And the visuals. OH. MY. GOD. I watched the attract mode for a LONG TIME.

While the docs are mostly in Japanese (as one would expect), the inside cover of the manual says "Welcome to the devil's kaleidescope". Cute. Anyway, I had heard that this was a cool game, but I was blown away far more than I expected to be.