Nice consistent artstyle, fitting audio and you get to play an electron, what else can you ask for?
My only nitpick is that the keyboard control feels a bit spongy and I ended up dying to this a couple of times.
Perhaps "spongy" is not the appropriate term. When I release all movement buttons the electron keeps going for a while. So I guess there is some form of momentum going on which creates the sensation of a "spongy" movement. It is a bit unexpected in a bullet hell type of game where exact positioning is crucial.
I am currently running Linux, I'll check it later on a Windows machine to see if that makes a difference.