Very cool game, great as always man. I especially love the drill sound, I have no idea why!
If you were to make another version i do have a few things,
it takes a while to throw all the items needed for construction
the shooting is a little bit too loud
the enemies don't put up much of a fight
But great job doing this in 48 (?) hours, that's not much time at all to make something like this. Keep up the good work!