This caped superhero game is a very rare unreleased prototype. The game was originally called 'Protector' (the official test name was 'VideoMan'). Tom wanted Gottlieb to get the Superman license but they didn't. 'VideoMan' was too close to 'SuperMan' so they went with 'Protector', but the name was also changed at one point to 'Guardian', and then 'Argus' (designers' joke name became 'ProVidGuardArgus').