well happy birthday to you mr. Vova. The game is not bad, even without sound i found it appealing in some senses. if you don't mind, i think i'll leave you with a few suggestions however. obviously, eventually this will need at-least sounds, if not sounds and music. also i would suggest that the controls (instructions) should be posted on the beginning pages or within the level itself to avoid confusion.
but of course this IS a beta, so no hard feelings or anything. Certainly a good job so far.
Good-luck and keep up the good work :)
~Dustin