#undertwist

Flowey (who is also Toriel) would meet you in the Ruins. She would be helpful and polite to you when you fell. She’d only make half-hearted attempts to convince you to stay with her though. And only the first time. Once you died and came back or RESET, she wouldn’t bother trying to convince you to stay. She knows what you’re going to do already.

You’d first meet Papyrus out in Snowdin Forest. He’d be nice and funny, a little charming—maybe a touch sarcastic—and he’d deliver you straight into his brother’s hands. Sans would want to bring you to Undyne—proving he’d be a good guard…but as they escort you, they get to know you. Eventually, Papyrus tells Sans to go on ahead. He pulls you aside and tells you he’s going to flip a coin. Heads you go free. Tails, he and Sans bring you in. You RESET until you get heads, and Pap sets you free.

Sans catches up to you in Waterfall. He’s upset and a little hurt his brother would betray him. Pap soon arrives and Sans pressures him into fighting with him—so now you have to beat both Papyrus and Sans, though Pap obviously isn’t giving it his all. During the fight, you help them reconcile and they give you advice on making your way through Hotland. They used to work in Muffet’s bakery, and they know she’ll happily turn you in for the money…unless you make it worth her while.

In Hotland, your experience depends on how often you’ve had to RESET and how often you’ve died. Alphys has been tracking anomalies in the timeline, and she thinks you’re a perfect subject. Mettaton is the one that helps you navigate through Hotland…until Alphys presses the switch that turns on his Killer Robot protocols. He’s obviously fighting his programing, though, and manages to override the protocols with your help and support.

Once you get to the Judgement Hall, you have to face Undyne. If you’ve killed a single monster, she gives it her all to bring you down. If you haven’t…then after a tough battle, Sans and Alphys both rush in to convince her that you’re nice and you don’t deserve to die.

Asgore and Asriel are both waiting for you after the Hall. Asgore is tired. Worn down. Melancholy. He’d let you go, if it were up to him. But Asriel is King now, and he is young, and still angry that he lost his mother to a human. During the fight, you must show him that you aren’t a bad human. That not all humans deserve death…and help him forgive his late step-sister, Chara, for everything she’d done.

The neutral runs result in Papyrus giving you a call, describing the results of your rampage. He goes from cheerful and upbeat to biting and sarcastic, even cruel, as you kill more and more people. Sans will always believe in you, though. It is impossible to only kill one brother—if you kill one, then the other won’t accept MERCY, and you have to fight to the death. Toriel is the one that calls you, when you kill them.

Anyway, the Papyrus is a P2 model and the Sans is an S2 model, so they’d both be energetic and enthusiastic. Pap works for Grillby as a cook—and they may or may not have a romantic relationship—and Sans is training for the guard. They’re each a bit of both Sans and Pap; energetic and enthusiastic, but also jokey and laid-back, though the Sans is more high-strung.

* But to answer your question, I know that Chara is sometimes a ghost?

* Or sometimes human I guess???

* Or uh, a ghost possessing a human?? I think I saw a Chara on the Undernet that was that??

Flowey (who is also Toriel) would meet you in the Ruins. She would attempt to steer you on the right path…until you killed someone, that is. Then she’d make progressively more aggressive attempts to stop you throughout the game.

If you’ve killed everyone in the Ruins by the time you reach Snowdin, Papyrus will become more and more suspicious of you as he escorts you to Sans. The screen before he finally takes you to his bro, he’ll pull you aside and fight you, reasoning that he can’t trust you around Sans. Throughout the fight, he’ll talk to you about kindness. At a certain point, he’ll offer you MERCY, and if you attempt to kill him, Sans will barge in. He’ll heal his brother, and now you’ll have to fight both of them. There will be one more opportunity for Mercy, but killing either brother will end the fight. At this point, the living brother will flee to heal.

You’ll face Undyne in Waterfall—either Sans or Pap will have called her, and she says that she can’t allow you to continue. The fight is brutal, and largely unchanged from the canon fight.

In Hotland, Mettaton is there to face you, serving as a distraction while Alphys and the others escape. He knows he can’t win, but he’s going to try to keep you occupied. He dies in one hit, but Toriel appears to take his place. She retreats before you can kill her.

In the Hall, you face the remaining skeleton brother. Both of them offer you a deal before battle. Papyrus offers to flip a coin for your freedom—but he’s using a double-headed coin. Sans also flips a coin with the “heads I win, tails you lose” condition. Accepting either offer is an insta-kill. They both fight you if you don’t accept, and neither of them is willing to offer or to take Mercy. Both fights are brutal.

The final boss is Toriel, though this time she’s absorbed the remaining human souls. She pleads with you throughout the fight. You don’t beat her by fighting, though—her health is infinite. You defeat her by choosing the right words to beat her down emotionally and mentally. I think Undertwist Chara has some unfinished business with her step-mother. Or maybe just mother figures in general.