Nice! Aside from bugs like arrows going behind obstacles so you can't get it. The concept is good, but I don't think it works in execution. Getting surprised by the enemies is fun at first, but it can slowly become frustrating when they come out of nowhere with no time to respond.
E.g. I shot one of the wooden blockages, and a few enemies came flying out from behind as soon as the block disappeared but I had to retrieve the arrow which at the place where the blockage was. There was nothing I could do and ended up instantly dying which felt a bit unfair.
But this is definitely an idea that could be worth playing with! I like how the light is tied to the arrow, so there's a sense of caution you have to have when playing this. This definitely something that can be taken further! :D