Bird-Strike

You, after finishing your glorious triumphs in special military forces, eventually got a window cleaner job through severely low employment. It seems that your cleaning is so good enough for birds, so that they couldn't recognize any windows of your building and make crashes. Too many cracks might threaten your job. Now, to defend your building and your occupation, make your sleeping gun awake. You're in a war of your own. Good luck to you.

Shoot to kill, give 'em no mercy! Bad Birds must be eliminated!!