Good use of twists, Master Kaeawc. You give alot of twists which can be bad if done if you don't warn the reader...but you tend to give clues, which is precisely how to make a twist very good.
I especially liked the decoy droid. I read that little sentence about "the foot pressure imprints being deeper than they should have been" about 5 times before I decided that I didn't get it and moved on. Then, when it was revealed to be a droid, it made sense; excellent use of hinted twist.