The graphics are great, it gives that darknight-pixel-withstars feeling, and I really love it. Also, I love the font you use for the arabic text (however if you want the players to read them, you'll get disappointed very soon, cause most players only comfortable with english, well, not on the arabic contest of course).
You mentioned in the first post that if anyone finds the game too hard, just train more. Imho this is not the best thing you can say to your players, because the users won't spend 15 minutes trying countlessly to pass a drop falls or a spike. I tried about 37 times to pass the long spike with the small holes, and gave up. This game IS hard :)
The sounds are a good start, but you should work on them to make them more pleasant.
It's a great start, I'd love to play your completed game in the future (even if it will be as hard as now).