Up arrow key/Space bar/W key/touch to make UFO go up. Do nothing for UFO to go down. Don't touch the spikes or you will crash. If you touch a wall, then you get one point and move in the opposite way. If you crash to the spike, press the green flag to restart and you score will be back to 0. Comment on your high score.
Credits to @Dylanbao11 greatest game I ever maked
