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[–] 1 point 1 year ago (1 child)

I think that was really more in the Atari days, right? Some of them have technical steps like jump switches.

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  • [–] 2 points 1 year ago* (last edited 1 year ago)

    I'm aware of some DOS games that did it. For example 1989 Prince of Persia had you enter the exact character (page, line, word) from the manual.

    On PS1 you'd probably never complete Metal Gear Solid (1998), cause you need to call somebody on the codec, but the frequency was on the box cover.

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