A classical game: Rapid Response! (This game is only compatible with computers and 2 players.) This is a 2-player game on reaction time. When the light turns green, Player 1 presses Z and Player 2 presses M to see which player reacted to the light first. When the results are out, it's either one player won, or a draw. You'll be able to see your reaction time in Seconds after. Try and beat the other player. If you don't have any friends, I'm sorry, but you can see if your left or right hand has a quicker reaction time!