5200 Menu (1983)

My Save State is where you keep a diary of the games you play.

You can't play 5200 Menu here, but you can log it, rate it, and see what other players think.

An extra-rare prototype cartridge. Only one is known to exist.

5200 Menu is a rare prototype that seems to be a kiosk of sorts. The game features Asteroids, which was never released for the system, Quagmire, which nothing is known about as it was canceled, and Failsafe, which was the working-title name for Countermeasure.