For anyone else that wants to do this, this is the function I made: function processButtonArt(buttonModel) { var i; for (i = 0; buttonModel.length; i++) { if (buttonModel[i].name().includes("Gamepad")) { var buttonValue = buttonModel[i].key.toString(16) return buttonValue.substring(buttonValue.length-1, buttonValue.length); } } } Then passing in the key (ie processButtonArt(api.keys.cancel)) . This obviously isn't super ideal since it's currently relying on name() but it's the only way I could find to discern between a gamepad and key for now (if there's a better way I'm happy to change) but this is working for me for now.

Nice work!!