Cutomizable Memory Match / Concentration Game with many cool options - Windows Shareware $19.95. One of 3 games in the Concentration Trilogy that give you more power than ever! Use your own pictures and create your own categories! This memory match game supports 3 game sizes, multiple players, Timed game option, Gravity, and Intermittent Shuffle. Three games, one price! See WWW.SENATORGAMES.COM/Educational for more info and more cardsets!