Finger fighting - Thumbs

Fight another person without touching them, using only the screen.

This is the famous thumb fight, where players hold each other's hands, and try to hold their thumbs together without releasing their hands. This game is an adaptation of this concept, where each player must accumulate points by pressing with the thumb without being pressed by the other, and whoever is pressed loses point. Whoever reaches the maximum points first wins or eliminates all the opponent's points.