player 1 (blue) - up arrow to jump, right arrow to move right, left arrow to move left and down arrow to hit with your sword. player 2 (red) - W to jump, A to move right, D to move left and S to hit with your sword.
DISCLAIMER: does not look as epic as the thumbnail xD @RememberNovember for the player art, music and insparation. everything else by me...
