Good manic shooter
Good job. It's challenging, yet fun. I like that it incorporates an upgrade system, but that it's not necessary to beat the game. I like seeing the characters I like from the series here.
In this game I find no legs to be a useless character. But that's just my opinion.
Like many have said, it's a little like Touhou, however there are enough original elements to set it apart, such as the upgrade system I mentioned earlier and some control differences, such as the "Focus" key. Great idea on that btw, I find it frustrating when my character moves to fast in other games to effectively graze through fields of bullets.