You have 60 seconds to devour 10 flies! Use the arrow keys to fly, and press the spacebar to activate your sonar (HINT: you won't be catching much without it). Once you use your sonar, it will need a few seconds to recharge. When you see the sonar symbol in the upper left-hand corner, that means you're good to go!
Created for Harvard University CS50, taken through Edx.
