Use your arrow keys to move. (caution: you don't move that fast.) BSODA will appear every 10 seconds and will stay on the screen for 3 seconds. Your score will go up by 5 every time you touch BSODA. Don't touch the stamina checker at the bottom left corner, because your score will minus by 1.
Thanks to all the images from google. WARNING: If you have a weak heart or are likely to have heart attacks, do not play this game. It contains jumpscares. (when Baldi catches you)