PrinceofMars
I'll be honest I only played it briefly.
In the time I played it I only have one complaint/suggestion.
The reason I actually closed it was because at some point I had acquired a power up to my gun that turn my shots into a constant firing laser beam that seemed to be switching fast between red,green, and blue I think.
Anyways that beams constant super fast color switching was really messing with me and I just couldn't keep looking at the game/screen because of it.
My concern is that I think some people with Photosensitive epilepsy might get seizures from watching it though I can't say for sure. I myself am not susceptible to that condition but I still think it might be a good idea to modify that beam/lasers colors and animations.
Just my 2 cents.
Other than that I found it pretty fun.