The most common cause of loading failures is a missing or misplaced neogeo.zip BIOS file.

is the community favorite. It is lighter than MAME, loads faster, and has very strict ROM auditing. If a game loads in FBNeo, it will run perfectly with minimal lag.

Getting up and running can sometimes feel intimidating because arcade emulation relies on strict file management and BIOS requirements. This guide simplifies the process, covering the best cores to use, how to handle the required BIOS files, and how to organize your ROM sets. Understanding Neo Geo Emulation in RetroArch