It doesn't work with my ps4 controller, and the only buttons I have found on the keyboard that do anything is r which resets, and the arrow keys. That means I can't even go into settings and fix it, but it looks so fun and I wanna play it :(
That ain't good! I only own a Xbox controller, will look into this asap and report back :)
Try downloading it again, I changed the system so it should support almost all gamepads now.