This was pretty cool. Needs a lot of work, but obviously it's just a demo...
Cool designs overall, and a really cool use of colors. I especially like the designs of the charge bar and the boss.
Every once in a while I mistook a background object for a foreground object and wasn't sure if I should dodge or shoot it. Not sure if this is intentional in the design.
The intro was really confusing. It was telling me all these controls and was thinking "Ok, when do I get that item?" I'd thought it was going to be a platformer.
Major suggestion, change the name. I understand that you're referring to standard lined notebook paper, but "College Ruled Universe" is just too confusing. I should say, the correct meaning is not the first thing that jumps to mind, even when I know what it is.