My 150th and last rating for this jam :)
My biggest problem was Escape to see the tutorial didn't work when the game is browser based and full screen, so I wasn't sure what to do, so I played and failed a few times and worked it out.
Also I fired the first fireball ok (and really liked the hold down left mouse to trigger it) but it only seemed to work once even though at the bottom it showed 3 times.
Very interesting idea on collecting items during death, something you could definitely use for a commercial game. Make the most of it!