This was so much fun! Initially I wasn't really finding a reason to rebound the bullets and was happy shooting directly but the level where it's mentioned on screen was great. Had a lot more fun with rebounding bullets and was shocked at how the levels kept coming. You got so much done!
Boss fight was a challenge, however it was taking out almost half its health upon seeing me due to rebounding bullets through its own shield. A few careful snipes later and I was free to find my reflection and win the game! Great work!