Very original idea and really cool art!
For me it was difficult to get the hang of the mechanic but that might just be me.
Awesome game! I loved the mechanic of scaling the ship and I think it fits very well with the theme, my only bit of feedback was I found myself sticking mostly to the two extremes, either a very tiny ship or the huge one to do maximum damage to the enemies. Also I liked the simplistic asteroids-like style! (: