If you are using RetroArch, RetroPie, or Recalbox, you have likely seen the core named "MAME 2003." This core is a modern port of the MAME 0.78 engine. Because MAME 2003 is the default arcade emulator for many of these platforms, the MAME 0.78 romset is the mandatory file collection required to make it work.

I can give you a for your specific setup.

MAME 0.78 remains one of the most significant milestones in the history of arcade emulation. While the MAME project has moved far beyond this version, the 0.78 romset continues to be the primary standard for millions of retro gamers, particularly those using mobile devices, handhelds, and single-board computers like the Raspberry Pi.

💡 Some later 3D games (like Tekken or Virtua Fighter) may be present in the list but might not run at full speed depending on the hardware you are using. How to Manage Your Romset

The clone games rely on the parent ZIP file to run. If you delete the "Parent" file, the "Clone" will no longer work. Key Games Included in the 0.78 Set

Street Fighter II (all versions), Mortal Kombat 1-3, and Killer Instinct.

To help you get your arcade setup running perfectly, I can provide more details if you tell me: