Really fun
This was a fun game that seemed similar to "Bullet Hell" as they constantly fired bullets at you in random directions. I found the easiest way to beat them was stay near the bottom and go back and forth while holding down the firing button. It allowed you to die slower and you got more of those circle things firing their rainbow bullets at you.
The way the health went down was a lot better than the way it happened in Galaga which only allowed one shot to one health. Where as in this game for each hit you take the ship shoots a tad bit slower and pieces come off with each hit. The way the score went up was nice as well.
The blue haired person reminded me of James from Team Rocket in the Pokemon series that comes on tv. The gameplay never really picks up on bothering to challenge the player to a tougher challenge either.
The choice in music was mostly fitting as well. The preloader looked pretty cool with the layered "GO" button. Also enjoyed the menu screen background. Although one question still bugs me is what are those things on the back of Cirno's back? Support for life or something?
Overall though, I would say this game tended to be fun. Albeit it was rather short it's almost like playing a very short and easy demo version of the TOUHOU games. Nice work on this piece.