Nevermind. The game doesn't recognize ps4 controllers. I was able to fix it but having steam big picture mode run it. It converts my inputs into an xbox 360 controller
Oh, good catch- I made this with an old version of Gamemaker that only supports Xbox controllers.Thanks for posting the fix! I added the note about being able to map it via Steam in the download/install instructions.
I hope you are your friends enjoy the game! :)