There is so much charm in this, wonderful job! The wall shake was a great way to simulate screen shake and the art was just a delight. Only things I might would say is toning down the wall shake (just the slightest) and maybe try to come up with a way to know how many bounces a projectile still has (not really a big deal though). Anyhow, keep up the amazing work! Can't wait to see what you add in the future!