Major franchises including the Metal Slug series (1 through 5 and X), The King of Fighters ('94 through 2003), Samurai Shodown, and Fatal Fury.

SNK sells the NeoGeo Mini (40 games) and NeoGeo CD (laserdisc-based). Ripping ROMs from these for personal backup may be legal in some countries (e.g., US DMCA exemptions for archival).

The NeoRageX 52 full ROM set complete pack is a collection of all 52 Neo Geo arcade games, including popular titles like "The King of Fighters," "Art of Fighting," and "Metal Slug." This pack includes every game released for the Neo Geo MVS (Multi-Vendor System) arcade platform, which was known for its incredible library of games.

A single "complete pack" may be 9-15 GB compressed, expanding to 20+ GB. But again, distributing these packs violates copyright law.