Left and right arrow keys: Moves left and right.
Spacebar: Shoot
Press the restart button or press r on the keyboard to start over.
Press the pause button or press p on the keyboard to pause the game.
If you do click the restart button, click the game after you click restart before you press the spacebar so you don't keep restarting the game.
If you get hit by one of the boxes, you lose the game.
If one of the boxes reaches the bottom, you lose the game.