Rock Paper Siz is a classic game on www.flash-game.net in which you play Rock Paper Siz, a classic and common match, with computer but not your friend. The rules are the same as in real life between people. You can click the BEGIN to start the match. Matches are determined by the first to three wins. 1…2…3…throw. Use your mouse to choose your throw by clicking on the Rock, Paper or Scissors icons. You may choose and rechoose your throw at any time during the countdown. If you do not make a choice before the countdown ends, you will default to Rock. It’s not easy to win the computer. So you can practice it many times. Maybe you will find some methods and rules the computer follow. Have fun.