1. no music
2. did they just see me throught the wall !?! seriously !?!
3. graphics are simple but it's not thyat big of a problem

They can see you through walls.

Very simple, but functional. A decent way to kill 5 or 10 minutes, but not much more. The objective is nothing new and there aren't really any distinctive elements, so I won't be giving a great rating to it. In the future maybe add some sound effects and some sort of gameplay mechanic that is original.

Difficult but not impossible. Levels are increasingly challenging and engaging. Good work guys.

I just finished the game; holy crap, It is very frustrating. However, the game is too short, and it does lack a story. But, I do like the levels where they chase you when you enter a certain zone. They were surprisingly easier than the ones than the "normal" ones. I'll give it 4 because I enjoy stealth types despite the lack of story and how short the game is. It needs a story or more levels.