Puzzle Boys is the second game in the Puzzle Boy series of 5 games. The first game is the most well known, released as Kwirk on the GameBoy in North America. This is Atlus’s only FDS game, and a late one at that, as the FDS was pratically dead by the time the GameBoy came out. This game improves on Kwirk by adding color, a really fun two player on the same screen mode with the ability to handicap the better player, and way more puzzles in Puzzle Challenge Mode, 80 vs. Kwirk’s 30.