Hmm ok
Well its not a bad game, its kind of simple, yet fun. Theres a lot of things that need to be done though, sort of things that are essential to a game like this.
Better graphics, and i mean this as in pictures and how the things react. Like when the spaceship dips, you could make it look like it was dipping or whatever.
Need to have an option to turn off music. I liked the song, but id rather listen to my music.
YOU DEFINITELY NEED SOME KIND OF POINT SCORING SYSTEM. No explanation needed.
The game wasnt challenging at all to be honest, but it was a bit fun.
Needs a better gravity system instead of a very linear up/down.
That is all i can think of, i look forward to seeing your work as it improves.