Nicely polished game, I like the style and presentation a lot.
I found it quite hard to play though, the briefcase would seem to spawn with the case inside the arm and it would very often collide with the player collision a lot of the time, so throwing it became really slow and it was hard to hit the menu items and the targets. I gave it a good go though, and enjoyed the challenge - I did find it quite difficult though.
I think having a turn option would have be great to add, especially if you're playing seated. Quite a few drones appear behind you, which is fine for standing, but not great to seated players.
Great game idea and implementation though, has a great action feel to it. Great achievement in just 7 days :)