http://www.dlsite.com/ecchi-eng/work/=/product_id/RE142300.html From the same circle that made the Monmusu Hunter games, Pheromone Running is actually an autoscroller where a boy accidentally releases a scent in his school that makes all the females horny. He's the only guy around, so they all pursue him. The main playing screen has a stamina gauge which constantly depletes and a rudimentary map which shows your progress in the stage. You must avoid obstacles on the floor by moving away from them, but one obstacle can only be avoided by jumping with Z key. You are knocked back if you hit an obstacle, and you must mash Z to escape. If you are knocked too far back, you end up with two or three girls on you, and you must mash the arrow key in the specified direction to escape. The demo is long enough to showcase the type of game you can expect in the full version.