That was fun, reminded me of Portal somewhat - the rather serious setting and art while being funny.
Stacking piles of bodies is definitely a great pastime, and making game around physics system is HARD. I've enjoyed the puzzles even if some of them required a bit of luck to pull of :)
If I had to critique something - I think the levels don't need all of those additional assets, like the boxes on the wall and the damn fake levers i think i can pull! Look at how portal does it and still looks good!