WMG / Inverted Fate

Confirmed Theories

Undyne, filling the Royal Scientist role, discovered the tapes that Alphys would have covered up, and then revealed their contents to the Underground.

This would be Undyne's "Discovery" and partially explain the hostile approach of the Underground towards the humans.

• Confirmed in Part 23 by Mettaton, although he also revealed that Papyrus was involved in said unearthing.

Undyne's injections of Determination are distorting the Save Points because she's trying to build up enough Determination to take full control of them.

Just like how Flowey lost control of the Save Points to Frisk, except that Undyne is deliberately aiming for that power. In her mind, it's win-win: she's wrenching that power out of the hands of someone she's convinced would only ever misuse it, and if she can tap into it for herself, she'll be able to Save-scum her way towards her idea of a Golden Ending. One where, ideally, she'd be able to convince Papyrus and everyone else that she only ever did what she had to do for the greater good, win Alphys over, and obtain everything else she's ever wanted.

After all, she'd have all the chances in the world to make things right… wouldn't she?

• Confirmed. During Frisk's fight with the Determinator, a determination-powered mech, Undyne is trying to kill Frisk enough for them to lose control of the timeline.

The Amalgamates are cybernetic.

This track, which is clearly based on "Amalgam," has a programming command for a title and sounds much more mechanical than its original version.
In addition, one of the Gaster followers speaks of metal and magic not combining well and how "the facade you build above does not change the damage underneath."
Perhaps Undyne tried to alleviate the Amalgamates via robotic enhancements like she did to herself?

• Confirmed.

mus_null plays during the Darkest Hour.

The music itself is very dark, almost nonexistant, being mostly just wind. At one point, we can hear what seems to be either Hyper Goner (Asriel's final attack before going One-Winged Angel) or the sound that plays when Asriel's name appears below him (It's me, your best friend. ASRIEL DREEMURR). During the song, His Theme plays, slightly glitched. Your Best Friend also appears sometimes, and we can hear Photoshop Flowey's Evil Laugh.

Conclusion? The Darkest Hour has arrived. Flowey is at his strongest. He is once again The God of Hyperdeath, or maybe something even worse.

• Partially confirmed. mus_null plays throughout the Empty Ruins after Asriel's rewriting of reality, which Frisk and Chara traverse through in null_2. Asriel has indeed achieved a new version of his "God of Hyperdeath" form as well, though he doesn't show up in person until RIFT.

Asriel will absorb the SOULs of humans on the surface.

The new intro at the end of Part 61 shows multiple human SOULs floating around, with it being unclear if this means Asriel has killed them, absorbed their SOULs while they're still alive (and left them in a soulless state much like he was as a flower), or if it's just symbolic. It's likely that even if he hasn't taken any more human SOULs yet, he will eventually, and maybe even do it to Lilac just to taunt Frisk even more.

• Confirmed. null_7 shows that he took the SOULs of every human in the city, leaving behind empty husks. Word of God confirms that while it was seemingly left ambiguous at first, Asriel has absorbed their SOULs too.
  • In null_7, he even took Lilac's SOUL while not having absorbed it for the sole purpose of taunting Frisk, later ominously claiming he had "big plans" for Lilac.

Asriel has more than than the main 6 souls this time and has the power to alter the timeline.

During the post-battle sequence with Flowey, we see a lot of souls with some of them having different colours than in canon. It could be possible that Asriel killed a bunch of people and absorbed their souls, making him far more powerful than he was in the original timeline. Futhermore, he's now regained the power of determination, meaning that Frisk and Chara can no longer reset and return to a previous save. If they die against Asriel, they die for real.

• Partially Confirmed, as null_7 shows that he has been absorbing the souls from the humans in the nearby city, but he hasn't been killing them. Also, dying in the playable version of null_5 will have him reload.
  • Furthermore, Asriel had control over the timeline even when he had just the six human SOU Ls (which was also demonstrated in UNDERTALE with the Photoshop Flowey fight), and he had merely been disgusing his own SAVE File as Frisk's starting from the Toriel fight to Angel's Promise. It's safe to say this also applies to him having the power of seven, as while UNDERTALE allows the Player to exit and reload during the Asriel fight, it's likely an oversight by Toby Fox.

The city seen at the end of the New Game arc episodes is going to be very important.

After all, such a significant detail wouldn't be added in if it didn't mean anything, right? After escaping from the corrupted Mt Ebott, Frisk and Chara will reunite with Lilac and make it to the city. The Very Definitely Final Dungeon will be the giant purple void atop the city, and the theme playing in that void will be mus_rift with mus_ego playing in the last few sections of the void before the final boss.

• Partially confirmed. mus_rift and its variants all serve as overworld themes for the titular Rift, which started out as the "purple void". However, they're far from "the last few sections" before the boss, as Word of God states the Asriel boss fight will occur on Rift_10, many chapters after mus_rift and mus_ego to say the least.

null and Final Arc

The null arc is confirmed to have 7 chapters and it's likely that the final arc will have 13 chapters. The final arc will take place on the surface, though it's unknown how much it's been altered by Asriel. It's likely that each fight with Asriel's forms will be its own chapter and so will the ending. Though unlikely, the final chapter will just be called Inverted Fate, etaF detrevnI, Fate Inverted or Iuʌǝɹʇǝp Ⅎɐʇǝ.

• Partially Confirmed, as both null_7 and RIFT take place on the Surface. However, it remains to be said that both NULL and RIFT are parts of the Final Arc, with the aforementioned "final arc" merely referring to RIFT.
• Jossed in regards to each Asriel phase being its own chapter, as [[Main:Word of God Dorked]] confirmed that all phases of the Asriel fight would be contained within Rift 11.

Open Theories

Spamton G. Spamton's interactions with Frisk and Chara

Word of God confirms that Spamton will play a small role in the final arc. Taking the humans' backgrounds into consideration, the following may occur:

• Spamton offers a deal, but Frisk avoids him due to being familiar with scammers.
• Chara ends up convincing Frisk to give Spamton a chance, paralleling the former's strong similarities to Kris from Deltarune.
• Spamton is secretly after their [[Heart Shaped Object]]s for a chance to become a [[BIG SHOT]].
  • Well in null_3, its implied that the MTT Resort is under new management and the voice is the same one used for Spamton. Furthemore, Word of God confirmed that there won't be any fights until null_5, so it could be possible that a Spamton fight could be possible unless it's somebody else because it seems like it'll be a long while before Frisk and Asriel even come face to face with Asriel.
  • Confirmed. Spamton is indeed fought in null_5 alongside 2 henchmen. It remains to be seen if he'll have a second form akin to his fight as Spamton NEO, a new form entirely or he won't have a second fight at all.
  • The second Spamton fight is jossed because no such thing happened in null_6 and it's highly unlikely that null_7 will even take place on the surface.
  • Actually, null_7 does take place on the surface, and Spamton's presence in the city is hinted at during it. Rift 1 confirms Spamton's presence during a post-credits scene, and shows him jumping into the Rift to "avenge" Lilac. While this indicates he will have some presence during RIFT, it remains unlikely he'd fight Frisk and Chara, and especially not Asriel.
  • Spamton having any second form is jossed, as Word of God confirmed Spamton is happy with his current body and that he wouldn't have a "Spamton SPIRAL" form or otherwise.

Frisk will learn a spell

It's established that it's possible for humans to manipulate magic, though it's rather weak without a magic accessory. Since "the Mage" and Chara were able to learn magic, why not Frisk?

What exactly are the RIFT minibosses?

These enigmatic fellows were first teased in the form of silhouettes, starting with "The Angel" in thumbnail of mus_ego, and were further shown off in the RIFT teaser image and UNDEREVENT 2022 Inverted Fate trailer. They are set to be faced as minibosses across several RIFT chapters. But what exactly are they?

• Are they actual sentient beings, or mere puppets and illusions? Word of God has deliberately left this open-ended for the moment, with the phrasing heavily implying that they're just the latter... or are they?
• Their collective group's name has been speculated to be "The Rifters", "Followers", "Disciples".
  • Jossed. They're confirmed to be called the Figments, representing how they're parts of Asriel personified.
• For each of the individual Figments, from left to right (as seen in this teaser image◊), their names are "Puppetsriel G. Puppetsriel", "THE EGO" (Rift_2 miniboss), "Squid Games"(Rift_4 miniboss), "Vacuum Cleaner", "Not_Mechamalgamate" (Rift_3 miniboss) and "Flowey Man" (Rift_6 miniboss).
  • Partially confirmed for "THE EGO" (Rift_2 Angel Miniboss), Rift_2 revealed its name is the "Effigy of Ego", but is often shortened to just "Ego" and sometimes "The Effigy".
  • Jossed for the Figments of Rift_3 and Rift_4 who are named the "Pawn of Possessiveness" and "Fiend of Fatality" respectively.
  • Partially confirmed for "Flowey Man", which is directly related to Flowey's Origins Episode showcasing Flowey's descent into villany in multiple timelines. The boss itself is called Entity of Emptiness.
• If the Effigy of Ego fight in Rift 2 is any indication, Theme Naming may be in play. The remaining bosses might be called Effigy of Love, Effigy of Violence, Effigy of Idealism, Effigy of Control and Effigy of Cruelty.
  • Jossed. Word of God confirmed that the other Figments will use "X of Y" naming formats, but will have alliterative naming formats and will not all be called "Effigies", evidenced by Rift_3, Rift_4 and Rift_6's figments being named the Pawn of Possessiveness, Fiend of Fatality and Entity of Emptiness.
• So for the remaining 4 minibosses, one of them might take place during a chapter that parallels Mettaton's fighting tournament and with the miniboss being an embodiment of Asriel's suppressed anger at his own death and resurrection in addition to Frisk and Chara's
  • The tournament is jossed. Instead it takes place during the day where Chara's plan to break the barrier ended in both their own death and Asriel's. The miniboss is also jossed, being an embodiment of Asriel's death and the trauma that resulted from it.

Guesses for the remaining Figments (RIFT minibosses)

Since we're almost halfway through RIFT, guessing the names, appearances and roles of the remaining Figments wouldn't hurt, especially after being equipped with a better view on what they actually are. So, we have the Execration of Emptiness ("Flowey Man"), Divinity of Denial ("Puppetsriel G. Puppetsriel) and Hoover of Harmony/Chime of Consonance ("Vacuum Cleaner").

• The Execration of Emptiness represents how "empty" Asriel felt inside during his time as Flowey, and would derive its appearance from Flowey (or Photoshop Flowey) and has vines across its body plus an unnerving smile. The name is based on how Asriel saw himself as "broken" during his time as a flower, and the atrocities he did during his various resets. Ending the fight would either involve rejecting it or convincing it that life has meaning despite the presence of resets.
  • A teaser from the Inverted Fate server reveals it will derive its appearance from regular Flowey, at least for its face.
  • Partially confirmed, though its called the Entity of Emptiness, with it indeed having vines on its body along with a body with a striped shirt like Asriel's.
• The Divinity of Denial represents Asriel's denial- of how much Chara has changed, or the potential implications that he's not doing the right thing. Its derives its appearance from "Angel of Death" Phase 2 Asriel from Undertale (or alternatively just Kid Asriel, like the Possessivness). The strings represent how his denial holds him in place and prevents him from achieving his fullest as a god. Ending the fight would involve rejecting it and getting it to see things differently.
  • Partially jossed in that there are no Figments based on Asriel's Final Form in Undertale.
• The Hoover of Harmony represents the "good" in Asriel- the of him that actually cares about other people, and wants to clean up his mess. Would be an aspect of Asriel buried under everything else, and may parallel the Effigy of Ego in terms of "wanting to do the right thing", but much more sincere in comparison. Would derive its appearance from... a Vacuum Cleaner that's banged up and small (though it could alternatively be regular Flowey, if Emptiness is Photoshop by process of elimination). Ending the fight would be helping it understand that it's not too late to fix everything.
  • The part about the vacuum cleaner is (obviously) jossed.
• The Chime of Consonance takes the form of a bell suspended by vines, and represents Asriel's repressed regrets and doubts over whether what he's doing is the right thing. Now with 100% less vacuum cleaner. It being a bell is inspired by the swaying motion the "bulbous" part does, though other theories have suggested it's a wilted flower (similar to Flowey after the Neutral Ending) or a cage (that will not contain a human SOUL). Ending the fight would involve helping it come to the conclusion that just because Asriel is unable to feel love or compassion, it doesn't mean he is an abomination because of it.
• Alternate names for the last two Figments:
• Puppet of Pettiness, Marionette of Malcontent, Doll/Demogogue of Discontent/Dependence/Denial, Figurine of Falsehood or Toy of Truculence("Puppetsriel G. Puppetsriel") representing Asriel's dissatisfaction with the world, his pettiness and immaturity because his life as Flowey stunted his growth, stopping him from learning that his actions had consequences and that he can't control other people. The strings represent Asriel taking direct control because he can no longer trust the Figments not to mess up, and because he believes that the heroes can't win if he's directly pulling the strings. It could also represent how Asriel has to lie and deny constantly in an attempt to maintain control and justify his actions, and because he's completely unable to accept that Chara has changed as a person.
• Carnation/Cage of Callousness/Corruption/Cruelty/Cowardice/Complicity, Dome of Deference/Delusion/Duplicity, Hoover/Host/Hostage/Herald/Harbinger/of Helplessness/Hangman/Heretic/Heathen/Homunculus of Helplessness/Homunculus of Helplessness/Sack of Suppression/Silence, Vial of Vindictiveness/Vengeance/Viciousness/Vainglory/Vanity ("Vacuum Cleaner") etc representing Asriel's suppression of his inner goodness, his denial, guilt and fear of facing consequences; or that his better self (a small Asriel in the fetal position) is helpless to do anything against his worst self (Flowey) who has completely taken over. Alternately, helplessness can represent Asriel's attempt to create a Figment that has less of "himself" in it after being forced to kill the Entity of Emptiness for spiting him. Or alternately, it represents how Asriel's "good" half was still complicit in everything Flowey did and could've chosen to stop at anytime.

Guesses for the remainder of RIFT

A WMG somewhat related to the previous one above. Since the final arc is already well underway, there's nothing left to lose so here's a guess for how the arc might play out:

• RIFT_5: Frisk and Chara meet Papyrus. They decide to catch up and inform each other of everything they've learnt about Asriel's plans and Asriel himself.
  • Frisk and Chara meeting Papyrus is confirmed, though most of this one is jossed because most of the episode consists of them trying to free Papyrus out of his lost state and they don't get a chance to catch up until the end of the episode.
• RIFT_6: Figment battle against "Vacuum Cleaner"
  • Judging by this teaser, it's possible that this is jossed and that "Flowey Man" might be fought in Rift_6 instead. Though considering the shape of "Vaccuum Cleaner" resembling a cage being held by a vine, it's possible that the Illusion Flowey might turn into "Vaccuum Cleaner".
    • The fight being against Helplessness ("Vacuum Cleaner") is jossed. The Rift_6 Figment is the Entity of Emptiness ("Flowey Man"), who is what the illusionary Flowey turns into.
• RIFT_7: Figment battle against "Flowey Man"
  • Jossed, the Entity of Emptiness ("Flowey Man") is fought in Rift_6: Empty Inside, as mentioned above.
  • By process of elimination, "Helplessness" could be the stage boss of Rift_7 since "Puppetsriel G. Puppetsriel" seems far too important to be the penultimate Figment.
  • This is also jossed. If you take the Soundcloud thumbnail for mus_denial and brighten it, it shows the puppet with a hidden message instead.◊
• RIFT_8: Figment battle against "Puppetsriel G. Puppetsriel". Might have ties with Lilac because it's silhouette is consistently portrayed as lavender, a colour close to lilac and is the only figment to be controlled by red strings.
  • This is jossed since mus_denials hidden thumbnail secret implies that the "Puppetsriel G. Puppetsriel" is the boss of Rift_7, leaving "Vaccuum Cleaner" as the final Figment.
• RIFT_9: Asriel forces Chara, Frisk and Papyrus to fight a creature containing Lilac's soul. Lilac is freed and she joins the party. Alternately, Asriel decides to be a jerk and force the party to fight against all 6 Figments at the same time. Or fuse them into a monstrous chimera which requires a new strategy to overcome.
  • Jossed, Rift_9's mysterious boss fight is confirmed not to be Lilac or any Figment(s).
• RIFT_10: Prelude to the final battle. The party discuss what they know and any strategies for the upcoming battle. Spamton makes his final appearance and doesn't show up again until the ending.
• RIFT_11: The final boss fight with Asriel, in which Frisk, Chara, Lilac and Papyrus must fight both of Asriel's forms.
• RIFT_12: The ending.
• RIFT_13: The epilogue.

Who is the mystery boss in Rift_9?

RIFT_9 is an upcoming chapter after the hiatus releasing alongside a playable version, and is confirmed to contain a yet-to-be-revealed boss. Pre-emptively jossed candidates include Papyrus, Lilac, Napstablook, Asriel, a Figment or Spamton. Verdict's still out on the Memoryheads.

• For those wondering why these candidates are jossed: Spamton was a stage boss in the Null arc, and he's not getting a second fight according to Word of God, Papyrus is jossed because he's the stage boss of Rift 5, Napstablook is still in the Underground, Lilac -despite being a common prediction- is confirmed not to be a boss, though her soul might be tied with a future boss fight, the Figments will likely be bosses of the remaining chapters and Asriel's fight doesn't take place until Rift 11.
• Since the Asriel fight likely won't have a section for the Lost Souls (while Papyrus had his own in Rift Part 5), it's possible that the mystery boss fight is against none other than against the other main monsters, brought back for a showdown against the trio. Even then, it's unlikely they'd be Lost Souls as Asriel is unaware of said forms. However, if he were to bring them back as puppets, it would be a different story. Alternatively, the Memoryheads could be what harnesses them, but it's unlikely as it was only the six souls who had the ability to "release" monsters, and they only had enough willpower to free Papyrus.
• Another possibility is that it is just the Memoryheads after all. Though, the Memoryheads appear to be on good terms with the main trio and uses Spamton as their middleman to provide goods to them, so it's not clear if they'd want to fight them at all. If it is a fight, the Memoryheads would likely have to fight them "barehanded" (figuratively) unless there happens to be surplus machinery lying around in the Rift. It is possible that the Memoryheads are merely involved, but not the opponents in said fight.

More guesses on who the Rift_9 stage boss could be?

For the sake of fun, let's throw in a few esoteric and absurd guesses and potentially joss them all:

• Photoshop Flowey (Not going to happen because it's been jossed numerous times by Word of God confirming that it wouldn't be happening. In addition, Flowey already tried that plan once in the original timeline and it didn't work, not to mention that that a Flowey boss fight has already happened twice (as himself and Effigy of Emptiness) in addition to all the references to Photoshop Flowey throughout the Null arc. Even with alternate universe shenanigans, it's doubtful that Asriel would want to risk bringing in an Eldritch Abomination that could possibly try to usurp him after they possibly destroy the heroes.
• An alternate universe version of Flowey or Asriel (Very unlikely since Asriel has no intent on becoming a Multiversal Conqueror and it's doubtful that Asriel would be desperate enough to try and sic an alternate universe version of his previous or current form on the heroes to delay them.
• Genocide Route Chara (Not happening. A Chara battle has already happened twice both as themselves and their past self in the form of Fiend of Fatality. While it might be interesting to have the heroes encounter a corrupted Chara from the end of a Genocide run, there's really no good place for such an encounter to happen and it wouldn't work with Inverted Fate's story.)
• Chara's parents (Very unlikely. While Chara's parents were stated to be abusive parents who never really cared about them, and saw them as nothing more than a symbol of their status, they're aren't as important compared to Asriel's apocalyptic plans because the story was never about them to begin with. If anything, Asriel would have no actual reason to bother creating facsimiles of them unless he wanted to spite Chara specifically and not even Asriel would go to that length just to hurt them.)
• Kris and their team (As a non-canon chapter, this would be interesting but Darkners aren't are a part of Inverted Fate's story. In addition, we've already seen younger versions of various Deltarune characters before Flowey's betrayal, and Kris appearing is jossed so that's not happening even with alternate universe shenanigans.)
• Canon Spamton NEO (It's been confirmed that they're will be no second Spamton fight, and that would very like include Spamton NEO. In addition, Asriel doesn't see IF!Spamton as a threat, and likely would think the same about canon Spamton.)
• Jevil (Asriel has no reason to assume that a character who embodies chaos would be trustworthy in any capacity in addition to deciding that the last two figments need to be less "life-like" (i.e being unable to talk back). If anything, Jevil canon or not wouldn't be worth the trouble for Asriel to summon, and that's also assuming that an IF!Jevil even exists to begin with.)
• A monstrous amalgam of every single monster in Undertale. (The Lost Souls aren't happening and Asriel wouldn't see much reason to summon or create a monster that is a monstrous fusion even if he could control such a being.)
• A Giant Space Flea from Nowhere or Lone Wolf Boss (The narration at the end of Rift_6 ask if reality can withstand the strain, implying that the RIFT's existence might be causing a strain on reality itself. It could be possible that the Rift_9 might not be a character from Undertale or Deltarune, and may be a creature that isn't related to Asriel's plans at all but only exists due to a tear in the fabric of reality.)
• A Glitch Entity (Considering that Paypyrus's escape caused a glitch in the RIFT to appear, and the narration at the end of Rift_6, it could be possible that Asriel's meddling has caused an unintended glitch to appear which could effectively destroy all of reality if left unchecked.)
• Hyperspace Is a Scary Place: (Asriel's meddling with reality has already caused Gaster Followers to appear out in the open, so it's possible that it may have other consequences such as causing other universes to leak into this one or an Eldritch Abomination to surface out of nowhere.

Rift_7 will be set in a corrupted version of Hometown

What with Asriel mentioning wanting to make a more "subtle" world that tries to appeal to Frisk and Chara, and the narration at the end of Rift_6 evocative of Gaster's speech in Deltarune.

Remaining guesses regarding scenarios of the last few RIFT arc episodes

• RIFT_7: Denial figment. Asriel mentions creating a warm and cozy new world for Chara, but considering how he treats Frisk, it's possible that Frisk will have to experience something horrible to even things out. While Chara might get a recreation of their childhood home and green grass as far the eye can see, Frisk may get stuck in a Dark World version of the same area, filled with the bodies of those whose souls were stolen by Asriel. Furthermore, Denial is a doll-like puppet on strings, implying that Asriel will be directly controlling them, and may also be trying to deny his double standards regarding how he treats Chara and Frisk respectively.
• RIFT_8: Helplessness figment. The area might be based on Flowey's plans during the events of the original timeline and his defeat after the Photoshop Flowey fight. Flowey feels helpless, and is unable to handle having his worldview shattered by Frisk sparing them repeatedly despite Flowey trying to kill them. Helplessness likely represents the mounting despair and desperation of Asriel's plans falling apart and that his attempts to double down have only made things worse.
• RIFT_9: The stage boss isn't a Figment and has nothing to do with Lilac. However, it's apparently special enough to be getting a playable version alongside it's eventual release. Interestingly enough, the Soundcloud OST was updated after the Inverted Fate: Final Chapters trailer which added a new track called mus_future, which might relate to the overrall theme of the episode. With the Figments defeated, Asriel decides to go ahead with his plan to create his new world, only for reality to unravel instead. Frisk, Papyrus and Chara end up in a Bad Future where Asriel's new world is nothing but emptiness and desolate ruins. Despite Asriel's plans, the RIFT collapsed, killing everyone inside and ended up wiping out all life on the planet aside from the Gaster Followers, who now await the return of their master.
• RIFT_10: Frisk, Chara and Papyrus return to the present time, though Asriel is none too pleased to see them back. Asriel is busy manifesting his new world into reality, unaware that his meddling with reality can only end in disaster. As a result, it's a mad dash to Asriel as the boundaries between the old and new worlds begins to collapse.
• RIFT_11: The final battle with Asriel. All that is known is about this is that Asriel has 2 forms, both battles being in the same video.

Jossed Theories

Regarding the spoiler track...

• 0:00 - Megalovania (Chara's theme)
• 0:35 - It's Raining Somewhere Else
• 0:53 - sans.
• 2:38 - MeGaLoVania (Vriska's theme not Chara's)
• 2:55 - Dating Start
• 3:13 - Heartache
• 3:30 - Megalovania (Chara's theme)

The opening piano solo is definitely a bit of Megalovania (Chara's theme), implying the song has some relation to them. Since their character is much more fleshed out than in the game, it is likely a major plot event. Given how they have stated that they aren't the biggest fan of being dead, perhaps the song plays if they get a physical body?

• Actually, some have noticed that in every track even tangentially related to Sans, Megalovania plays in some capacity, and indeed quite a few motifs related to Sans play throughout the entire spoiler track. Not every AU creator leaves Megalovania as Chara's motif.
• Jossed, as Dorked explicitly stated that IF uses MEGALOVANIA as a motif for Sans instead of Chara, with “Once Upon A Time” and “Undertale (beta)” being used for Chara instead.
• See the below WMG for the canon explanation.

The spoiler track plays over a battle with the five surviving humans.

It is explicitly stated that the track "has no canon equivalent," so it must be something completely unique to the new timeline. Aside from the appearance of beta monster Doge, the only completely new event is that Toriel spared five of the human souls.

• But the humans, whether they were spared or not, could not still be alive — the monsters still possess six human souls, meaning that all the humans to fall since Chara have died.
• Jossed. The updated version of the track is used for a scene where a distraught Frisk tries to fight their way to the souls while Sans holds them back and Papyrus tries to talk them down.

Undyne will manually control Mettaton's body and force him to fight Frisk.

Time and again, Undyne has wound up hurting her friends while reassuring herself that her actions serve 'the greater good'. Such as how she ignores or discounts the fact that by releasing the Dreemurr Tapes, she has driven her Queen into self-imposed isolation and despair, or has been insisting that Papyrus is being manipulated and/or mind-controlled by Frisk because that's easier than facing the fact that he's choosing to support them. Having her hijack Mettaton's body carries that theme of willful ignorance forward, and stomp on Frisk's Berserk Button even harder.

• For bonus points, Undyne may actually be aware that this is a sore spot for Frisk — and in deliberately using that to try and manipulate them into making mistakes, further continues slipping further away from any legitimate claim of heroism. For what kind of 'hero' banks on a 'villain' showing mercy, care, and compassion towards others?
• Jossed. Mettaton "willingly" fights Frisk, but only to distract Undyne and give Frisk an opening to escape. Undyne ends up cutting off Frisk's escape with the Determinator.

Undyne will pull out a Photoshop Flowey as the last chance to kill Frisk and break the Barrier.

Flowey has no interest in Photoshopping himself. He already knows from the Undertale Timeline that the SOULs will rebel against him. Besides, he's gonna go higher, after transforming into the Angel of Death for the second time.

This was written shortly after Part 49 released. Here, we can see Undyne having a Villainous Breakdown similiar to the one Flowey had at the end of the Neutral Run. And while it may seem she has given up on killing Frisk after various Monsters said they don't want Frisk dead, nothing could be further from the truth: Undyne says she doesn't care if people hate her, it's worth it if the Monsters reach the surface, and is willing to die for it.

While we don't know how Toriel is gonna react during her boss fight, it's rather clear she doesn't want to kill Frisk. So, while the boss fight with her is happening, Undyne will repair herself after the fight. After that, she absorbs the human SOULs to become something similiar to Photoshop Flowey (maybe more stable as she isn't as insane as him?) and kill Frisk once and for all.

• Jossed. Undyne is chilling in the True Lab while Flowey absorbs the human souls.
  • I don't think chilling means running into the true lab full of monster amalgamations for unknown purposes, but to each their own.

Flowey’s plan is to travel to before Chara took their own life, and Set Right What Once Went Wrong

. A semi-recurring theme in IF seems to be about regret and forgiving your own mistakes. Undyne is unable to move forward in part because she is still trying to atone for the Amalgamates. Flowey talks repeatedly about how he’ll “make everything right”. His bio states that he has even higher ambitions than before. What could be higher stakes than trying to undo everything Frisk has done? Undoing everything he has done.

• Jossed. His plan is to permanently separate Chara's SOUL from Frisk's, and bring them back to life by reviving their body and putting the SOUL into it. He also breaks the barrier and heads for the nearby city on the surface, with the implication that he plans to get revenge against humanity for causing his death, and to create a new world.

Napstablook is going to be a Spanner in the Works.

Word of God has confirmed that, like in canon, Napstablook was completely ignored when Flowey absorbed everyone's souls. However, whereas in Undertale Napstablook was completely unaware of what was going on, here, Mettaton was broadcasting everything live, and Napstablook mentioned in Victory Lap that they were planning on watching said broadcast. In other words, they saw absolutely EVERYTHING. Whatever's Flowey has planned, they're probably going to aid Frisk and Chara in some way, maybe even becoming a Guest-Star Party Member alongside Lilac.

• Jossed. While Napstablook does appear in null_4, they don't do much other than offer a few words to Frisk and Chara, preferring to stay back. In fact, neither they nor Lilac become Guest Star Party Members.

Asriel will release the monsters, but they won't be themselves.

The author has stated that Frisk would not be happy if Asriel brought back the monsters but erased their memories of his betrayal, hinting that it's likely to happen, especially if as stated above he's taken many more human SOULs and doesn't need the monsters anymore. It's possible that he might go further than that and brainwash them into worshipping him and Chara, with them and Frisk having to help some of them remember who they are as a replacement for the "Lost Souls" segment in Undertale.

• Going on from that, if he does release the monsters, Papyrus won't be included, as another way to spite Frisk by keeping their best friend from them.
• Jossed in the case of Papyrus, who is released by the six human SOULs.

Papyrus will help the six human SOULs rebel again.

It's been stated that Flowey made sure the SOULs of the six fallen humans wouldn't turn against him again by manipulating them, especially since they died differently this time round. However, people have pointed out that in the new intro, there's a shot of Flowey/Asriel surrounded by the six SOULs as well as those of the 8 main monsters, with a strong implication that the monster SOUL seen in the middle of the human ones is that of Papyrus. Part 59's computer has a recording of Papyrus reading to the human SOULs while he and Undyne were in posession of them during the DT experiments, so it's possible that they might recognise his presence and, perhaps with some help from Frisk and Chara on the outside, listen to him and help him fight back against Asriel, giving the two humans the upper hand. The fact that Papyrus' motifs feature in the two currently released final boss tracks also supports his involvement.

• Partially jossed. The six human SOULs do indeed help Papyrus in return for his kindness, but they do so by protecting him from being fully absorbed and eventually freeing him, at the cost of themselves getting fully absorbed so they can no longer rebel.

Asriel successfully resets the timeline and alters reality, trapping Frisk and Chara in a Lotus-Eater Machine while he goes off to free humanity.

The end of Part 61 implies that Asriel succeeded and rewrote the entire narrative so he's the main hero while going off to give humanity the salvation they deserve. Frisk and Chara are could be trapped in a bastardized version of the canon timeline (as a reference to those who thought that Inverted Fate would end with it reverting to the canon timeline) where everyone's personalities are horribly off-kilter with them speaking about Asriel's actions with holy, heroic sounding euphemisms. Chara and Frisk are seperated and have to reunite before escaping the corrupted Mt.Ebott and taking on Asriel and calling him out on killing humanity and rewriting the world to fit his selfish fantasies.

• Partially jossed, Word of God has said that Chara is with Frisk in the Ruins, and Asriel has not reset the timeline just yet but has still altered the world in some way. However, he could cause resets later on.
• In a roundabout way, some parts of this did come true in Rift 2. While the fake canon timeline didn't happen, Rift 2 does take place in a golden cathedral filled with Asriel cultists who worship Asriel as a god and Chara as an angel. Also Chara does call Asriel out on his selfishness and hypocrisy during the fight with Effigy of Ego.

Lilac's SOUL trait is green (Kindness)

Lilac's friendliness is what encouraged Frisk to ACT nice, and despite the little "incident" that occurred before the story began, she goes to Mt. Ebott in hopes that they're safe.

• Zigzagged. According to Word of God, Dorked prefers to allow characterization to speak for itself and thus the color isn't necessarily linked to the "trait."
• Jossed. Lilac's SOUL is revealed to not be green, but lilac (the color). Like mentioned above, this SOUL color is not tied to any "trait".

Asriel didn't absorb the human SOULs from the surface, and is instead harnessing them some other way

Since the power of seven human SOULs already grants infinite power, and Word of God confirmed he's unwilling to give up the original six human SOULs (or even replace them with a new set) due to his attachment to them, what if Asriel never actually did absorb them?

• In the Final Arc intro, the human SOULs are shown floating toward the sky. While it could be inferred that he had absorbed them, the imagery brings to mind hearts floating up to join the artificial Kingdom Hearts from Kingdom Hearts, also featured heavily in Dorked's Kingdom Hearts fanfic Antipode.
• The method Asriel harnesses the human SOULs from the city's residents could be similar to the Kingdom Hearts, with the ominous floating orb featured heavily in NULL's credits actually containing a massive collection of human SOULs floating around, which Asriel would be able to use to alter reality further and open the RIFT, like how he did during the postcredits of null_5.
• Jossed. Word of God states Asriel has absorbed all the spare human SOULs, with only Lilac's SOUL remaining unabsorbed. On the other hand, the "ominous sphere" was just The Rift in its earliest stages. While the Rift seemingly features floating human SOULs around the place, Word of God confirmed its merely an aesthetic choice.