That was really good and interesting concept! Like truly intuitive once you get the feel for it. A couple of points are for the dash increase the iframes ( the time the player is invulnerable, cause it can lead to a lot of accidental deaths) and also the same is true for the start of a wave, give a small freeze or delay for the monsters cause the player especially in Keyboard/Mouse mode can delay more than someone using a controller to get back into mode due to having to move hand and so o. Also preferable make the valley instead of shooting where you are going shoot where there are monsters because rarely will it help me since I and most people are running away from monsters, not into them