Atari 2600

Boing!

Title screen. You can't see the squares because the game uses flicker, causing the characters and squares to exist opposite of each other.

Bubble Eater got popped. He is right above the center extra men. This is wave 1.

The Bubble Eater is on the bottom right. The yellow | is the Pin and I am the blue ball. This is wave 2.

Wave 3. Here are the squares, with some turned on.

Wave 4