This is a fun game, but pretty short. On level four, the first half of the boss has a safe spot that can be exploited so you can just shoot at him without getting hit. I like the idea of the evolving upgrades and the prices slope very nicely with the money earned. The English also needs some work, the game currently feels very Zero Wing. 4/5, I hope to see more content in the future.
Now here's the things that I really like. I'm a big fan of the recent moves section, and the capturing mechanism is great (although there's no way to use the enslaved enemies yet). I'll definitely check back soon to see how the game is progressed and provide more hopefully helpful feedback. You run a great series, keep it up!
I noticed how you can mouse over stats on characters for more info on them, or the element name, but this does not work on enemies. Just a minor annoyance. I also personally think that you should have a category for both elemental strengths and weaknesses, instead of just putting -20% or +20% under resistances. But hey, that's just me.
Amazing game, but there's one very small issue. The things you adjust in the settings do not save, and the next time you reload the game it is reset to default. I'm not sure if there's a way to fix this, but it would be great if you guys could :)