Player 1 (the stick figure) uses the left and right arrows to move and space to jump. Player 2 (the orange circle) uses a and d to move. Every 5 seconds, P2 will gain 1 point. If P1 touch es the circle, it gets 1-3 points (it depends if it hits the middle or edges ). First to 11 wins, and good luck!
I did this all myself. Version 1.2.2