I am? Actually, I can think of 4, though some are better than others.
My other suggestions for Oriental Bizarre Horror, not including Dead Sushi (which is one of my favorites) include:
Zombie Ass (it’s a weird one, even for my standards. It’s also not as funny as I would have thought it would be. It’s also rather gross. The trailer is hilarious, though: http://www.youtube.com/watch?v=kDRxT18ADSo )
The Happiness of the Katakuris (More bizarre than horror, but still fun. A bit slow paced, though)
Hausu, or “House” (Hilarious and bizarre, with attempted horror)
And I guess my last one isn’t really a horror movie, but it is really weird and one of my favorites, along side Dead Sushi. It’s called Robo Geisha and is about just that. XD