Q (1) W (2) E (3) R (4) Use those keys respectively, touch is not programmed yet.
Hey guys I'd like to come out of my 'little' break with a project, not original, but a remake of the famous Piano Tiles. It is a beta that I put together in two hours so don't expect much. It requires you to get as many as you can without regard to time. I hope you enjoy, many new features will be out soon(: