You must source your files specifically from a 0.139u1 (also known as MAME 2010) archive. Finding the Romset on Archive.org
This guide is for educational and preservation purposes. The author does not condone piracy. Archive.org hosts these files for historical archiving. Please only download and play games you have personally purchased or own the original arcade PCBs for. mame4droid 0139u1 roms archiveorg install
/storage/emulated/0/Android/data/com.seleuco.mame4droid/files/roms Permission You must source your files specifically from a 0