I think that this game could be cool, but it requires a tutorial to tell what is going on. Any new player has no idea what any of the audio cues mean, and given that there is no visual indicator for what is happening (even how much health you have left, which might be a good idea as some kind of feedback for getting hit), you can't really figure it out yourself either. I think it really has some potential and even this genre itself has some great potential but it is impossible to understand what you need to do as a player without some guidance. I got score 100 a few times and had no idea why. I couldn't really tell when my gun was charging either, though I heard some sounds a few times that sounded like it could have been that. Really want to see what a finalized version of this game would look (or sound) like!