How Do You Get Into The Advance Game Options to Change Mame Emulators?

- Navigate to the game: Find the game you want to modify in your game list.
- Hold the "A" button or "Enter" on keyboard: Press and hold the "ENTER" button on the mini keyboard  While on top of the game title
- Select "Advanced Game Options": Choose this option from the menu that appears
- Select emulators: Select emulators then choose the emulator you wish to try.