The "Play a completely random game" button causes the computer to choose a player for the human player, one for the computer player and choose the card but not the number of players. For player 1 (the human player when the game is against the computer): Move with the arrows and shoot with the A key. For player 2 (when there are two human players): H key to ascend, B key to descend, D key to advance, G key to backward and T key to shoot. Press the space key to reset the game.
