It's insane how much thought was put into this relatively tiny game. Haven't done a genocide run myself (and probably won't, because the dogs) but...man. I've heard that the Sans fight is tough and unfair in places, which is kind of fitting considering how you've been playing as someone who basically murders children so why should you get any mercy?

I actually really like how you can manipulate your save file if you do something and want to escape the consequences (and the game's fully expecting it, as there's a lot of dialogue that you can only get if you're messing around with your file). Flowey would, why shouldn't you? :')