I like the idea here, but honestly couldn't figure out what I needed to do. I read a spoiler below, which gave me a better idea, but I do agree there needs to be more of an indication that those are what you need to reflect OR make them all able to be reflected back (I still couldn't find which ones to reflect back). Plus you die a LOT I would recommend decreasing the difficulty quite a bit.
The art style and sounds have a nice retro theme to them! Good work!