http://www.norbain.com/games/quad/ how to play: keyboard / mouse moves the tile , space rotates, any other key drops the tile. place the tiles such that you either build horizontal or vertical complete lines. does someone here knows if this game tetris variant is an original idea? or is it just a well done flash conversion of an already known game concept? if so, i would be very interested in the origins of this game. i really like it!