Not too bad of a job, though it's really not that good. I just have two problems with it:
1. Make the bullets wider. With the high move speed, it makes shooting w/ any accuracy impossible.
2. Smooth the movement out. It moves like a mosquito that bit a heroin addict.
The Spread Shot upgrade is extremely flawed and the Extra Life bit cost seems a tad to high. Also, for some reason I was getting a bug that a couple of pixels would be stuck a specific color *Yellow in my case* Other than that, fine job!
You need to add an exit button for whenever you are specializing your mages. I often times forget what I have and what I dont, leaving me with multiples of something I dont want :/ So It'd be nice if that was added in. Other than that, a great game!