games Xpuyopuyo is a UNIX port of a very big time sink :) . Puyo puyo is a puzzle game, somewhat like Tetris (but much more involved in strategy), where you strive to match up four "blobs" of the same color. Each match you make gives points, and also dumps gray rocks on the opponent which are irritating and troublesome to get rid of. Multiple matches at a time score more points, and dump more rocks on the opponent (a quintuple-match will dump around 20 rocks on the opponent, all at once).