Game File: 

metapong.zip

It's pong, except the ball contains a second game of pong. Scoring a goal in either game awards you a point and resets that ball only. First to ten wins. The outer layer has a few special rules (can influence the ball's path by hitting it with a moving paddle, and the ball's velocity increases with every paddle hit up to a maximum speed) that the inner layer does not.

Not entirely sure if I played a game like this before. Was fun to make regardless.

Controls:
Player 1: W/S
Player 2: Up/Down