If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Undead zombies attacked your home and you do not have any other weapons but the baseball bat. Your wife is throwing the balls as the pitcher from the balcony and you have to hit the balls precisely so that those hit the zombies. Stop as many zombies as possible by hitting them with the baseballs. First let the ball to hit the ground to bounce up and then hit it accurately to hit zombies. Try to hit the zombiesâ€™ heads to cut them off with the ball for double score. Use A key to hit the ball with your primary bat and press S key to use the secondary bat which would not be available at first.