It seems that Atari knew about the upcoming zombie apocalypse that will start on Halloween and put a warning in their joystick squiggles for us to find just before the flesh eating starts:
Do you see the face? It kind of looks like a fat zombie Mario who is grimacing in pain. You can see his double chin or jowls and the right side of his face is drooping (on our left).
If you can't see it, click on the spoiler below:

Do you see the face? It kind of looks like a fat zombie Mario who is grimacing in pain. You can see his double chin or jowls and the right side of his face is drooping (on our left).
If you can't see it, click on the spoiler below:
Spoiler