Test your reflexes in the speediest game ever. It's super simple and you have only 2 choice on your path: up or down. If you bump into an obstacle, you loose. Are you ready to raise the challenge ? Up and Down,reflex game,arcade game,hypercasual game,running game,reaction time game,obstacle avoidance,mobile game,easy to play,fast-paced,addictive game,reflex test,up down game,challenge game