ROMs exist in a legal gray area. While the emulator itself is legal software, downloading ROMs for games you do not own is generally considered copyright infringement. Furthermore, users should be cautious when sourcing ROMs, as third-party sites can often bundle files with malware. Conclusion
If you want to play a Clone, you must have both the Parent zip and the Clone zip in your ROMs folder. fba4droid roms
Most users prefer a centralized folder on their SD card or internal storage. /sdcard/fba/roms/ Keep ROMs in their format. Do ROMs exist in a legal gray area
: It is generally considered "less picky" than MAME regarding exact romset versions, often booting ROMs that might fail on other platforms. fba4droid roms