BT-16 Perimeter Droid has had every external component painted black as night, with attempts to minimize the brightness of external lights and features. This allows this BT-16 Perimeter Droid to more easily blend into the shadows and darkness unseen.

BT-16 Perimeter Droid has developed a predatory nature similar to those often associated with assassin droids. As a result, BT-16 Perimeter Droid will often approach a situation with the mind set of a hunter, and convey their findings as such. This can be disconcerting to others who are unaccustomed to BT-16 Perimeter Droid.

BT-16 Perimeter Droid has received advanced automated repair programming based on the original BT-16 Perimeter Droid schematics, giving it an ability to perform or assist in the performance of self-diagnosis and self-repair of its mechanical systems. This system engages automatically upon damage, and can render the droid temporarily unavaialble while it assesses any necessary repairs before further action can be taken.