Use WASD to move up/left/down/right and the left and right arrows to turn. Look inside to see how it's done!
Made for @1a3c5e7g9i, who asked on the forums about a scrolling background that rotated properly around the player sprite. It sounded like an interesting challenge. And here it is! Just took sketching some things out on paper to make sure I had the trigonometry right. UPDATE 7/31: changed control scheme to allow sideways movement.