I downloaded and played and i'll review it now as promised.
Ok first i'll tell you the pros of the game,It had good use of scenery and a unique storyline. The setup of the level i thought was quite interesting and you used some good music which i noticed was made with Sony Acid Music Studio

.
Ok now the cons, the biggest problem was this

for some reason in the front room no textures showed up.Another major problem was as soon as you got to the second floor the enemys didn't really attacked, they just stood there. These are rather bugs than flaws in the game but i would try to fix them if i were you. Also i thought that you should have tried to add in more puzzles besides the 1st switch puzzle.
Hope the game comes along well
-Bobmomento
"Sharp like blades"