I liked the graphics in the game a lot more than I thought I would- to be honest, the lone screenshot isn't all that appealing. It's a pretty simple style, but it works well enough, the effects are snappy and the UI is sharp.
It took me a while to figure out the gameplay. It was probably cut for time, but I really wish there was a tutorial of some sort. I liked the idea, but I found it really hard to use the comet powers, and even when I pulled off a successful attack, it often wasn't as effective as I was hoping. I found it very difficult to plan attacks because of the obstacles and fixed timing, and once there were a lot of enemies on screen it was easy to get mobbed and interrupted. It also wasn't that clear how the charging up worked, and sometimes I would attack immediately and I don't know why.
I really wish some of the narrative made it into the game itself, even if it was just a static screen or two, but I understand why that was probably cut.