Now you can select the keys you want to represent the buttons on the NES controller. As you can see in the screenshot below, I selected Nintendo (NES). Select one of the gaming systems you’re going to be using from the first drop-down menu. Select the Control button from the navigation panel towards the top of the OpenEmu screen.

Open the Preferences by selecting OpenEmu from the Apple Menu Bar and then Preferences… from the drop-down menu.

Before you jump into a game, let’s configure your keyboard controls/gamepad.

Select them all and then ‘drag and drop’ them into the Drag & Drop Games Here section of OpenEmu.

Finally, click the Go button to start using OpenEmu.

Unless you have a good reason, leave all of the items on the System Cores Installation window checked and then click the Next button.

Click Next on the first screen of the ‘installation wizard’.

Make sure there’s a check in the box next to OpenEmu and then close the Security & Privacy panel.

Click the Open System Preferences button.

If you’re using the latest version of macOS, you’ll need to grant the App keystroke permission.

Instead of double-clicking the App to open it, locate OpenEmu in your Applications list, hold down the Control key on your keyboard and then click OpenEmu. zip file and drag the App to your Applications folder to install it. Here’s how you can play MAME ROMs on your Mac – I thought I’d see if you could play them in macOS, and sure enough it’s actually quite straight forward. Today I stumbled across an old CD I have full of MAME ROMs. This guide will take you step by step through the process of setting up your Mac so that you can play MAME ROMs (games) on it.

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