Not bad...
I quite liked this, simple but fun. Not particularly the most ORIGINAL idea but it was a damn good try. The difficulty wasn't to hard, started off easy and got harder later in the game.
However the police could still see you through walls and the language was frustrating at times. Please, fix the police vision so they can't see through walls and add a language button at the beginning; so you don't have to deal with Spanish language.
6 then. Add more music choice, a basic story perhaps, fix the police's x-ray eyes and the language. Fix all of these and i'd be happy to give the game an 8.