You are Barack Obama and you are in Guantanamo jail to save the prisonners. You must throw keys to release the prisonners ( who have got handcuffs :) ).
You win points as soon as you hit a prisonner with a key.
But beware, you mustn't touch them and mustn't touch the balls, because you will lose your energy.
So, you need to do the best score to be the first on the leaderboard.