This is basically Hudson's take on Puyo Puyo. It doesn't quite work as well due to the pieces not linking as easily (only the pieces in a direct horizontal or vertical line will disappear, not those of the same color otherwise touching this), and the three piece blocks you get make it generally hard to build up what you want. I initially was ready to pretty much dismiss it when I first tried it, but I found that even despite these problems, it's surprisingly addictive, and I had a hard time putting it down. It's not the best puzzler on any of the platforms its on (except maybe Virtual Boy), but it's not a bad purchase if you find it cheap.