Christmas Pong is a festive remake of Pong, one of the very first video games ever made. The rules have not changed in decades, but the look has: the paddles are Christmas candy, the ball is a tiny Santa Claus, and a Christmas tune plays in the background while you battle.
Each player defends one side of the screen. Move your candy paddle up and down to bounce Santa back towards your opponent. Every time he gets past a paddle, the other player scores a point. Scores are tracked at the top of the screen. You can play in single-player mode against the computer, or in two-player mode with a friend on the same keyboard.