From Wikipedia: Kaiseki (懐石) or kaiseki ryōri (懐石料理) is a traditional multi-course Japanese dinner analogous to Western haute cuisine.
We were kind of in a crunch for time and heard that the hotel had a not too bad Kaiseki offering. Taste wise, we were not all that impressed when compared to everything else we ate in Tokyo. Presentation however, was very nice and it made me think that the French chef behind the nouvelle-cuisine movement might have been inspired by Japan's Kaiseki for their approach to plating. Worth further investigation.
Various sushi (not quite on par with the ones we had at the fish market... obviously)
This dish (above) tasted like dirt. I am adventurous, but this was not a pleasant experience!