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Pac-Man & Ms. Pac-Man -- hold start for free credit

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pac-manfree play
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  • S
    sleve_mcdichael
    last edited by 25 Jul 2022, 18:26

    I noticed that on both pacman.zip and mspacman.zip in lr-fbneo, if I hold down "start" for about 1s with no credits in, it will add a credit. My actual "insert coin" button is still Select, as default.

    It doesn't happen on all games, for example tmnt2po.zip doesn't do it. Is this a feature of the emulator, or the game itself? Did this happen on real hardware? Seems like something I might have heard about if there was such a simple "free play" hack in one of the most popular arcade games ever.

    D 1 Reply Last reply 25 Jul 2022, 18:57 Reply Quote 0
    • D
      dodonpachi @sleve_mcdichael
      last edited by dodonpachi 25 Jul 2022, 18:57

      @sleve_mcdichael in lr-fbneo, holding start is the equivalent of pressing the service button on the PCB. In games from the 90s and onward, this would bring up a menu where things like difficulty and pricing could be set. In older titles like Pac-Man, it would register a credit (remember, you pushing select is tricking the game into thinking a coin was inserted, not that a button was pressed).

      S 1 Reply Last reply 25 Jul 2022, 19:10 Reply Quote 0
      • S
        sleve_mcdichael @dodonpachi
        last edited by 25 Jul 2022, 19:10

        @dodonpachi ah, so it's the "pressing the service button" that adds the credit, not the fact that I'm holding start (aside from, that's how to make it think I "pressed the service button"). That make sense, thanks!

        1 Reply Last reply Reply Quote 0
        • B
          barbudreadmon
          last edited by 25 Jul 2022, 20:34

          @dodonpachi said in Pac-Man & Ms. Pac-Man -- hold start for free credit:

          In games from the 90s and onward, this would bring up a menu where things like difficulty and pricing could be set.

          Some games on pacman hardware have a service menu, and i suppose no one wanted to make a precise list of those games so the diagnostic input ended up being hooked for all of them.

          FBNeo developer - github - forum

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