How do you get pacman on your ms pacman galaga?

To play Pac-Man on your Ms. Pac-Man/Galaga arcade machine, you'll need to check if your machine has a dual-game feature or a board that includes both games. Some arcade machines have a switch or setting that allows you to toggle between Ms. Pac-Man and Pac-Man. If not, you may need to purchase a multi-game board that includes both titles and install it according to the manufacturer's instructions. Always ensure compatibility with your specific arcade model before making any changes.