Quick tip for RetroArch’s DOSBox-Pure core

If you’re trying to set up DOS games like Jetpack in something like RetroPie or Batocera, you might run into a problem where pressing the S key (“start new game” in Jetpack) doesn’t do anything, whether through a physical keyboard or through padtokey mappings.

This is most likely because RetroArch’s default hotkeys map S to one of the buttons on the virtual gamepad. (A decision which makes sense for consoles, where you need a gamepad and a keyboard is optional at best, but makes no sense for retro computers, where a keyboard is standard or even built-in, and a joystick is optional)

While I don’t know about RetroPie, under Batocera, the simplest solution is to add the following lines to your /userdata/system/batocera.conf to disable those mappings:


Then, if you do need mappings for DOS games, they probably go the other way (making the gamepad fake keypresses) and can be handled via padtokey mappings.

CC BY-SA 4.0 Quick tip for RetroArch’s DOSBox-Pure core by Stephan Sokolow is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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