Exellent game, very good looking and with excellent music! I feel like it is a tiny bit too simple though it does very well what it is meant to. The movement is also great and goes well with the animations and sound effects!
Only "bug"/"problem" I encountered was when I died, the broken armor pieces that appear, also spawned where I was going to respawn, but it only happened once.
Great job!
Also, first playthrough took me 189 seconds, I killed 10 enemies and got 41 coins.