OK, not great
Judging by the quality, I assume this is one of your first submissions. Thats not an insult, in fact a compliment. For a first submission(s) this is rather good. However, this concept has been done over and over and over again. Add something unique! Take a concept thats been tried and make it your own. Also, add a preloader, its not very convinient if the game starts playing before I can read the controls ^_^.