This set is called a "Fullset" because it contains every unique MVS ROM dump verified against the original cartridge data. A "clean" fullset is defined by the matching those in the official NeoRAGEx neogeo.zip BIOS file.
The is more than just a collection of files; it is a digital archive. Containing 188 games , it spans the entire golden age of the platform. This specific count typically includes the foundational fighting franchises, the definitive run-and-gun shooters, and the unique sports titles like Windjammers and Neo Turf Masters . What made the 5.2a set unique was its pre-configured nature . Unlike modern emulators like MAME, which require complex BIOS management and specific file naming conventions, NeoRAGEx was designed to recognize this specific set of ROMs instantly, providing a seamless user interface that mirrored the simplicity of a console.