Pros: Feels very chaotic and fast-paced. I like the aesthetics and style of the game a lot. It feels very retro and arcadey and I have a soft spot for those kinds of games.

Cons: Very, very hard to figure out what to do. It could have done with a tutorial or something similar. There's an instructions page but there's so much info and the text is so tiny that it's hard to read. Also, not sure whether it was my browser, but every time I pressed up or down it scrolled the page, which made it very difficult to play. The art style could also use some improvement but I'm not one to judge considering my art is even worse. xD

Chaos, explosions and moving stuff everywhere! That's how i like my Bullet Hell.

I had a hard time figuring out what is going on first, maybe a softer start would help to read the graphic and mechanics more easy.

Highscore: ~2000, survived almost 20 seconds lol.

Not relevant for the rating but maybe a nice-to-know fact:

on German keyboards, 'Z' and 'Y' are switched.  The controls are very inconvenient for me.

This is a nice game which was fun to play with. However, the graphics could still use a little work in my opinion. Also, the instructions are too long and tedious to read. They should be in the actual game, so the player learns when he progresses in it. Overall, a game with nice mechanics and plenty of content.