|N version||1.4 and later|
This level is not particularly difficult, but there are a large number of switches to collect, and it is possible to get cornered by the large number of drones.
When playing this level, keep in mind that seeker drones cannot see you if you are standing on a 4-tile (the center tile in this picture). You can wait on these tiles for the drones to go by.
This is how I did it: