Thumb vs thumb

Description:

Have you ever seen a thumb fight in the Old West? Now yes! The Saloon is invaded by many armed inches. You must act to resolve the conflict. You have to unsheathe the first in order to calm them down. Both thumbs are facing each other, button stands between them. You have to press the button to score points. But your thumb shall not be blocked by your opponent. The first to reach the score requested wins the game.
Press the side of the screen to press the button and earn points. When your opponent presses the button, remove your finger as soon as possible, or try to block your opponent finger. Watch out, if you are stuck by the thumb of your opponent, you will lose half of your score. The first one to reach 500 points wins.