SNK tweaked the console over the life of the system. No surprise there, gotta keep things moving or you die, right? Well, many in the Neo community didn’t want you to know what changed, when, and how. One secret email to me later, along with a chart and some clues, and… Well, have a look.
I’ve made a comprehensive list of differences between old and new Neo Geo cartridge hardware. Please have a look. Warning: Technical!