I gotta say, it's ambitious to make a platform/endless runner with RPGM. It works pretty well, though. I don't have much to say, but I found the camera to be a big problem. You don't have much room to see oncoming obstacles. It would play much better, if the player was closer to the middle of the screen. Also, don't use white text on a white background. It's difficult to read.
Nice effort and good on you for trying something different!