Played a bit of Puzzle fighter when it was out on GBA and PS and my experience with it is that it's the most confusing, unbalanced and unpredictable puzzle game I've played so far. (Including Internet Flash games). Every match is completely based on pure luck and some weird I'll smack you in one second from out of the blue.
It's a crime to charge for a game such as this. Wish they would release a new Puyo Pop game instead.