The Neo Geo was created by SNK as an arcade and commercial video game system. The hardware made its way into an (expensive) home console in 1990, with almost every arcade game available for it. This was back in an era where new arcade cabinets overshadowed consoles in quality. Granted, the Neo Geo doesn't quite fit in that pigeonhole, especially when you look at games at the end of its product cycle. Its draw, as an arcade cabinet, was its ability to store multiple games simultaneously.
1990 is now 25 years ago, and Humble Bundle has a huge collection of their titles for the next handful of days. These franchises include Art of Fighting, Fatal Fury, King of Fighters, Metal Slug, Sengoku, and more. They are all PC ports, of course. While some titles haven't been announced yet, most of them are available DRM-free on Windows, Mac, Linux, and Web (Chrome and Firefox). The two (current) exceptions are The King of Fighters '98 Ultimate Match Final Edition and The King of Fighters 2002 Unlimited Match, which are both Windows-only Steam keys.
The bundle lasts until Tuesday, December 22nd at 2pm EST (UTC – 5).