Controls: Move the scanner using the mouse, left mouse button opens the door and tricks or treats.
Is it the neighbour kids or someone more sinister knocking at the door ? Click to open the door and wave your scanner over the visitor. If it's ALL GREEN then it's a kid - give 'em candy from the Treat Box. If there's RED DOTS anywhere on the screen then it's TAZER TIME ! - FRY THOSE FREAKS !