PS2 Import Games

I recently acquired the means to play Japanese games on my US PS2 so, I was wondering what Japanese games I should get for my PS2. The only import game I have is .Hack//fragment and I'm planning on buying KH2: Final Mix. Are there any others besides those two that I should look into buying? You can point out imports for other systems if you would like but, any good import PS2 games would be the most help. It would also probably good to say that I own a copy of Jump Ultimate Stars so that one doesn't need to be mentioned unless your affirming it's awesomeness.