This was fun! Great enemy variation, an interesting item mechanic, and the simplicity of the level design was surprisingly effective. The artwork was pleasant too. I really liked the idea of seeking out certain enemies to kill me and gain some of their powers to help me progress.
Unfortunately the player health bar didn't work for me. Also, it would have helped to have an indication of how many items corrupt the player and end the game. And while I liked their freeze ability, being hit by a snowman felt really unfair as they will freeze you again before you can can move if you are hit just once. Lastly, I was expecting the items to provide more power than they did because the player felt very underpowered compared to the difficulty of the enemies.
Nonetheless, I enjoyed playing this game! Nice job!