klaymen.. gun-hockey?

So, one of the people that I respect in the gaming industry a _lot_, largely for his loopy artwork and great sense of humor which comes through in his super-quirky, character-filled games is Doug TenNapel. He originally designed Earthworm Jim, and then went on to form The Neverhood, who produced crazy, unconventional, weirdly great titles like The Neverhood, Skullmonkeys, and Boombots. I laugh _so_ hard every time I hear 'Eeevil Engiine Number Niiiine' (from the Claymation intro to Skullmonkeys.) And I actually did an interview with Doug for Gamasutra back in 1999 (evil free registration may be required, sorry.) Anyhow, I knew that The Neverhood's games were very popular in Japan, and in particular that The Neverhood (the game!) was released for the Playstation only in Japan. But I very randomly came across a reference to Klaymen: Gun Hockey, apparently some kind of Neverhood character-licensed.. air hockey game, again only released in Japan? Very, very bizarre. Here's links to the front cover and back cover. Does anyone have any more info, or even a copy of the game? Even if not.. you learned something new, right? :P