This is a really fun concept and game. My only real gripe is tracking potential threats when entering a room can be a bit difficult and an end an attempt at a perfect run really quick. Plus there's no quick way to reset if a run gets killed other then quitting and then skipping the starting cut scene. Those are very minor nit picks really. Super fun demo.
Also for anyone else jumping in, The safe word mechanic does have its own animation in most cases. They are very much worth seeing.