A "romset" is a collection of ZIP or 7z archives containing the data for specific arcade games.
The 0.134u4 version is particularly famous for its use in porting MAME to consoles and low-power devices. Mame 0.134U4 Romset
Necessary system files (e.g., NeoGeo BIOS) that must be present in the roms folder for the hardware to boot. A "romset" is a collection of ZIP or