Wow, this game really surprised me, especially for something that was made in just one day (though I usually try not to let that affect my judgment)! While the game was very minimalist graphically, the presentation and flow of the game as it introduced concepts using musical cues and text was superb and really got me into the whole purification business. My only frustrations were that I would prefer being warped to the previous room, not the beginning, on death, and that I feel like the final purification spree didn't need so much resistance from the tough enemies as it kinda halted the flow a bit. A great example that you don't need super intense graphics to make something so hard-hitting!