I really enjoyed it. The adaptation of the pool rules was a lot of fun. The spell cards were ridiculously entertaining, and even though they could wipe out almost the entire table, the strategy came from deciding when to use them and when to avoid filling up your opponent's meter.
My only small criticism is that the dialogue would stay on screen until I pressed C. That might be intentional, but it interrupted the flow a bit. Oh, and the boulder on the intro stays in the next scenes moving slowly to the left instead disappearing.