As a new "runner" of this game, the vague instructions to achieve a "true reset" do not work. I'm playing on windows through steam. turned cloud sharing off, deleted ALL files related to Undertale, reinstalled, and I still cannot get a reset. My runs are rejected because of this and I dont want to continue trying to practice let alone play if I can't submit a run.

Are you deleting the files in your AppData folder? Those are all you need to delete to achieve a true reset. Also if you haven't already, disconnecting the game from Steam is recommended as it gives you faster load times. You can do this by moving the UNDERTALE folder in the steam directory to a different location and deleting the steam_api file.

@JookieTheLookie Nah reinstalling the game in that situation doesn't fix it, it'll just show the post-geno 10min blank wait screen when you open so it wouldn't be a true reset even if you waited it out.

As long as you've seperated your game from Steam as thepotato_666 described above all you need to do is delete the files in your appdata folder located at C:\Users*****\AppData\Local\UNDERTALE and re-open the seperated game.exe to have a clean slate. (Don't play from the Steam launcher)

@thepotato_666 & @Habble Thank you, I will try that next!

But you can just type %appdata% on windows, go to local and in the Undertale folder eliminate all the files (srry if my english is bad but on windows I think you can do this)

@alstones I tried that, but I had to do what potato said and dissconnect it from stream

Disconnecting it from steam (deleting steamapi.dll) is the only way you can get the post-geno black screen to not appear once you have deleted your savegame after a completed genocide route.

Thank you all so much, you guys were right it fixed it. I currently have a run under review that'll put me the top 150 :3 super excited for this journey

Glad it worked! GG on the run and good luck on future runs.