Holy hell, the visual style and the fun of this game are both crazy! I'm sure I need to just "git gud", but the difficulty was way too high for me and I think some difficulty settings could be useful. I'd have to say, the theme implementation felt a bit lazy to me though, which is unfortunate, because everything else was amazing. My only other complaint would be the music and sfx were just okay but could be better. The game feels like a really well made, although a bit generic, bullet hell.

Apart from the difficulty, the game is pretty good. The visuals and audio match up well. But it's the difficulty and the lack of a tutorial level that really hampers it. The amount of bullets coming to the player is just too much to deal with and quickly turns the game into somewhat of a dull experience. 

I reached the second stage once so far.

Wow. The game is amazing.

It looks and sounds great, controls and feedback are great too and the feel of the different weapons is well rendered. The enemy and boss patterns are good. The difficulty seems perfectly right on point from what I've played.

Since we're at this level of goodness it frustrates me to die while trying and not managing to mashing my bombs, yet how it works is probably pretty standard, I'm not certain, and I guess the theme integration is a bit lazy compared with how everything else is brillant. These are very little details.

It could be an arcade game just as is, nothing to change. Congratulations !