Try and defeat the ghost as quickly as possible. Use the arrow keys to get through the maze (touch the purple square) then fight the ghost and get its health down to zero. You can adjust your aim using the up and down arrow keys and shoot using the space bar.
I made this in a day for Halloween, so there might be a few bugs. :P Thanks to streetsinger724 for the idea and to Ghostbusters for the inspiration! Code + Graphics = me Post your scores in the comments!