How you play is self-explanatory. Use the mouse to move the paddle, and the aim of the game to prevent the ball from touching the lava for as long as possible. The challenge is to make the classic game of pong in as few blocks as possible. Simply sum up all the blocks used in the project, and that's your score. I have a score of 15; 11 blocks in the ball sprite and 4 in the paddle sprite. Rules in project.