very cool game!, I laughed so hard at the legs animation. i was a really great touch, specially when the npcs goes bersek and starts to move their legs very fast...
anyway, back to the game review, the game has a great stealth system, and the less is more theme really fits in the game.
the way that you approached the design, could really lead to a stealth/puzzle game mash-up, think about it, if you make that a game let me know.