Dragon
It's so overpowered! I had an Excalibur and the 3rd best armor with full health and was killed by it. There is absolutely no way you're killing that thing unless you have the Divine weapon from the Grim store. Some runs I'd see the Grim store numerous times and others nearly never. It's a fun game, until you become impatient with the lack of chance to advance, even though you hope the next run will the 'the one', etc.
The same goes for those Golden Tickets, they are great if you can buy them. And again, for so many runs I tried to save gold, but never came upon that event that it became frustrating.. I'd die, give it another go, save gold, save gold, get close to dying but save gold anyway, until finally I can't just keep saving it... AND THEN a fu*king Golden Ticket appears... but not before a dragon gets in the way and kills me!
Fun, but the variability of being successful and straight dying is light years apart. Also, I absolutely hated that a store would entire the screen, but could not be clicked on until it was 1/3 of the way into full view - this was particularly important when coming across a soulshine, since lifespan drains by the second. Lastly, with the way the game is described, I expected it to be more fast-paced to actually create those moments for 'split-second decisions'.
I commend you for the art, programming, and music... it'd be more beautiful, if I didn't have these memories of zero HP and Lifespan.