Welcome to the sound missle command.
Defend your city from incoming missles. Use left/right arrows or A/D buttons to rotate the laser cannon. Use space button to make a shot. You can miss 9 missles only.
Missle sound pan is calculated relative to your laser cannon heading. Missle sound pitch is proportional to its actual altitude. Missle sound volume is proportional to its distance and canon scoping. There are bonus vehicles flying across the play arena following a horizontal path.
Good luck!