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#84035
Floob
Member

The mame file is:
/opt/retropie/emulators/mame4all-pi/mame.cfg

You can see the ascii key setup in there.
For example, escape is ’27’
http://www.theasciicode.com.ar/ascii-control-characters/escape-ascii-code-27.html

Game specific and the default ingame controls are here:
/opt/retropie/emulators/mame4all-pi/cfg/ (although you cant edit these with a text editor)