Jig:  Add any number of small and congruent shapes near the center of the map.
Guis:  Put the ninja in the upper left corner, so that it is propelled outward from the top and the left.
Jig:  Add a shitload of gold.
      (Guis:  Random?)
      (Jig:  It can be anywhere, as long as there's a shitload of it.)
      (Guis:  That's what she said.)
Guis:  Add two bounceblocks under the tiles.
Jig:  Add between one and five floorguards anywhere.
Guis:  Add a surface following laser drone that goes around your center tiles and add any normal doors you need to manipulate its path.
Jig:  Add the exit somewhere near the top right and the switch somewhere near the middle.
Guis:  Add a chamber in the bottom right.
Jig:  Add some mines.
Guis:  For each gold piece you have on your map, put one zap drone with the quasi-random setting, inside the map, visible, without overlapping any tiles or objects and free to roam throughout the map without being trapped by anything.