Click the yellow arrows and then place them on a place with mouseclick. Click the plane in airport A to start all planes. Press Space after each plane is in his Airport or when a plane is destroyed. Press X to reset the arrows. Sorry for my bad english. Lets play the creator: http://scratch.mit.edu/projects/TM_/1296770 ▓▓▓░░░▓▓░░▓░░░▓░▓▓▓░ ▓░░▓░▓░░▓░▓░░░▓░▓░░▓ ▓░░▓░▓░░▓░▓░▓░▓░▓░░▓ ▓░░▓░▓░░▓░▓░▓░▓░▓░░▓ ▓▓▓░░░▓▓░░░▓▓▓░░▓░░▓ ▓░░░░░▓▓░░░▓▓░░▓▓▓░░ ▓░░░░▓░░▓░▓░░▓░▓░░▓░ ▓░░░░▓░░▓░▓▓▓▓░▓░░▓░ ▓░░░░▓░░▓░▓░░▓░▓░░▓░ ▓▓▓▓░░▓▓░░▓░░▓░▓▓▓░░