Mame 0.78 Rom Set -

The 0.78 set is the standard for several popular emulation platforms:

Modern MAME versions (0.200+) require a multi-GHz CPU for accurate emulation of games like Killer Instinct or Gauntlet Legends. MAME 0.78 can run smoothly on a 300 MHz Pentium II—or a Pi Zero. mame 0.78 rom set

This is the easiest format. Every zip file contains everything needed to run that game. mame 0.78 rom set

You can still download the original 0.78 Windows executable from MAME’s historical releases. Run it via command line:
mame.exe pacman mame 0.78 rom set