I had an absolute blast with this one. I like how it incentivizes evil through the questions in which you get more points for doing the wrong things. I got all 3 endings: Am I a bad person for liking the third more lol? It is tragic but has such a poetic mixture of violence and consequence, it really fits the game's motif. In my opinion, it does a better job of showing how easy it is to lose your own soul amidst grief and a wish for vengeance, and how bitter can that result be: while the second one is more tame.
I gotta say, I love visual novels that break the typical mold of just dialogue/consequences. The timed minigame makes everything better: The split second decisions with a goal of making everything worse was an awesome idea.
I would definitely purchase a full-fledged game with this mechanic haha. A "Danganronpa"-like game where you trade coins for deals with a devil would make for a delightful game. Great job!