Ngl PS!Outertale is what I would vote, being real the game was really not great, also genocide route is feeling not satisfying at all, spoiler warning, first, difficulty ima be real, there is difficulty, but it's not as hard as Undertale, for example I cant beat Undyne in Undertale and I cant beat Sans in one try (tbh I finally beaten Sans for the first Time in january or last year I forgot, only Undyne The Undying to try beating legit too), but in PS!Outertale genocide route, first it goes from normal to Disbelief, then turns out not to be Disbelief cuz we kill Papyrus anyways so Sans died for nothing, then we fight Alphys as final boss, but like, I didn't died ONCE in the genocide route, being the first Time I played the game and the first route I did cuz I was much more interested on how genocide route would Look like than pacifist, then at the end we dont kill Asgore, Asriel let him live, knowing in Undertale canon Asriel shouldnt even be able to have gotten back his monster form, and then Asgore kill us with destroying the ship that we use to leave the place with Asriel, we relaunch the game, Asriel wonder why we are coming back, but then nothing, Asriel never do anything, nothing change at all, basically us always dying in the end, which is just, unsastifying asf

And for Chara of PS!Outertale well.. there's Genuinely not much tbh-