APX is a QIX clone with minor differences in game-play from the original.
Read about the original: http://en.wikipedia.org/wiki/Qix
Use arrow keys to move around the perimeter of square, hold down Space or Shift
to cut into the area. Connect back to perimeter to claim the area.
Your objective is to claim 75 percent or more to proceed to the next level.
Claiming with Shift key will be slower but give you double the points.
For every claimed full percent over 75 percent you get extra 1000 points.