The game is started when both players are holding their fire buttons
down. This causes the fists to rise, or "start the
prime." Once one of the player releases their fire button, the
down stroke begins, which sets the timing of each of the subsequent
"primes." During the final down stroke, or the
"approach," the players choose their final throw by pressing
left for paper, right for scissor, or nothing for rock. The winner
is indicated on the screen.
Game variations will exist for single-player mode, and for choosing the
number of rounds to be played.