In MAME 0.78, the default input polling can be slow. Go into the "Dip Switches" or "Settings" menu (usually Tab key on PC, or Select+X on handheld) and set "Frame Skip" to 0 and "Throttle" to 1. The Legal Gray Area (What you need to know) Let’s address the elephant in the room. MAME is legal. The act of downloading ROM sets for games you do not own is copyright infringement in most jurisdictions.
Unlike modern MAME versions (0.250+), which demand a multi-core processor and a dedicated GPU to emulate 3D games like Virtua Fighter 3 or Gauntlet Legends , MAME 0.78 runs perfectly on a potato. It can run on a Raspberry Pi Zero, a cheap Anbernic handheld, or a 15-year-old laptop. When you search for "mame 078 rom set new," you aren't looking for newly released games. You are looking for a newly curated, complete, and correctly verified collection of the ROMs that work specifically with this vintage emulator. mame 078 rom set new
If using RetroArch, do not use the generic MAME core. Use MAME 2003-Plus or MAME 2003 Extreme . These are built specifically for the 0.78 ROM structure. In MAME 0