By the way, that's a VERY brief summary of what I actually came up with. I wish I had had a voice recorder because I spent 2-5 hours saying literally every line of dialogue, every possible combination of route orders and what they would change in it, every single detail. If I had, there would literally be everything needed conceptually to actually make a mod of this. I had EVERY detail planned out. I haven't been that creative in a LONG time, and it gives me hope that my creativity isn't dead yet.
And it fucking started as an imaginary rant. I sometimes imagine that I actually would make like, blog posts about my opinions and shit, and I imagined that someone asked me my least favorite undertale character, and went on a mental rant for like, 45 minutes about how much I hate mettaton and how I would love to be able to fast forward through any time he's on screen as if we were watching it on a recording at the cost of stronger enemies from then on, and that led to complaints that second best waifu asriel got left behind, which led to me ranting about how mad I am that the god of hyperdeath fight is so fucking easy, which led to me being mad you can't kill asriel which I realized would betrayal kill literally the entire main cast at the same time, and have chara be like "DUDE WHAT THE FUCK" which led to me thinking up shittons of dialogue where frisk and chara said stuff based on whether you saved frisk's friends or not before killing asriel and whether you'd done a genocide route, which led to hours upon hours of a very detailed and like ten-twenty times more content version of the above wall of text.