Rough, but I liked it. Theme really only integrates with the story, but that story is solid and uses the theme in an interesting way, although its a little hard to follow without reading your description. The graphical style is MS Paint style, but to me it feels more of a compromise than as an artistic choice, although it doesn't drag the game down. Gameplay is really fun once you understand the mechanics, but there's some little details missing, like enemy death sounds or any indication of where you're getting hit from on the HUD. I also pretty easily blew past the tutorial sections without fully understanding the mechanics, which gave me some trouble with the boss first time through, but mostly on me.