Isn't it possible Flowey saw the new human arrive and immediately saw the opportunity to let something new happen? We don't know what exactly Toriel's and Flowey's relationship is at this time, because we don't see them interact, but if Flowey is still the same sweet-faced sociopath we know from the original Undertale, she most likely wouldn't want him near Clover. So he somehow disables the lever and makes the ground give way under them, to separate them from Toriel and gain their trust by making himself appear as a kind, friendly guide.
- Did you realize how often Flowey mentions dying and getting killed in-game? While this could just be brutal honesty, the fact that those remarks are usually promptly followed by assuring Clover that dying won't be any trouble because they have Flowey to load for them is kinda fishy. It seems like Flowey wants Clover to become dependent on him (which they are anyway, since they can't save) and get it into their head that they need him.
- Confirmed in the neutral ending. Flowey had already witnessed Clover's actions through hundreds of resets, and when he manipulated them into attempting to reach Asgore, they kept on dying in the main Underground, so he rigged the Ruins switch to set Clover on a different path.
- Or, as a more tragic scenario, Clover cannot pass Asgore no matter how he tries and gives up, telling Flowey to stop resetting for him. Alternatively, he hears Asgore's backstory and about the war and decides that killing Asgore would not be the just thing to do.
- Jossed in the pacifist and neutral endings. In the former case, depending on the final decision you make, Flowey will be more or less decisive on whether to reset again or to keep Clover dead, while in the latter case he will always offer to reset and encourage Clover to get a different ending. Confirmed in the genocide ending, though with the twist of instead of Clover dying, they're the one to override Flowey's power and gains the ability to SAVE on their own.
- Jossed. Though the best ending doesn't end with Clover getting killed by Asgore, they still ultimately die in the end due to willingly giving up their SOUL.
- Somewhat confirmed. According to Toby Fox, Asgore personally killed the six humans that fell after Chara. Though Clover still dies in the best ending, they give up their SOUL willingly and never face Asgore. Asgore does kill Clover if they killed the final boss in the pacifist route instead of sparing them, which is indeed the lesser ending.
- Confirmed in the true pacifist ending.
- Well, Catty and Bratty say that most of their stock comes from the dumpster, so I doubt it.
- Jossed. Clover gives up his soul willingly in the True Pacifist ending and has it taken by Asgore in the lesser Pacifist ending. The Neutral ending merely ends with Flowey resetting the timeline and the Genocide ending has Clover leaving the Underground with the five souls.
- Jossed. In the ending where Clover lives, they override Flowey's ability to SAVE and kill him.
- Jossed. No other humans show up in the game. The closest we get is the silhouettes in the Genocide ending.
Perhaps more importantly, what does this mean for the Player? We already know that Clover's quest is doomed by dint of Foregone Conclusion: Even if Clover makes it to the end, Flowey would almost certainly Reset for the timeline to match up on Frisk's arrival. If nothing you do will have lasting effects, the player is even more insulated from the consequences of their decisions than in Undertale: If Flowey Resets everything to the state we know it from the original game, what's to stop you from doing a Genocide Run? You won't even be the one Resetting, after all; that's on Flowey's head. The only thing stopping you would be whatever respect you have for Clover and their desire to embody Justice, but you're fully capable of forcing them to administer "Justice" in a way contrary to their original intentions. Someone willing to corrupt Justice for their own ends would certainly be in the right state of mind to become the "demon" of the first game's Genocide Route.
- Each of the game's three (or four) different endings involve a different interpretation of justice on behalf of the player:
- True Pacifist: Your original idea of justice was incorrect. Justice is seeking freedom for the wrongly imprisoned.
- Pacifist: Justice is only killing those who have committed sins that are too great.
- Neutral: Justice is attacking anyone who attacks you first, and sparing anyone who begs to be spared.
- Genocide: Justice is condemning all of monsterkind for murdering human children.
- Jossed. No Mercy is the only route that cannot fit the original game, as it defies Doomed by Canon with Clover killing Flowey and Asgore and leaving the Underground with the human souls.
Remember what Flowey said: he's played the game every possible way it's possible to play it. He's killed everyone, saved everyone, been the hero, been the villain...and he's still the one with his vines on the Reset Button. Every way it's possible for the player to play is a way Flowey has played it. So at some point in the "Groundhog Day" Loop, Clover gets a Pacifist Run and Everybody Lives with Flowey's help...and Clover also performed a genocide route with Flowey's help.
- Somewhat confirmed. Both Pacifist endings can be taken as canon. The Neutral ending ends with Flowey resetting the timeline, so it being an end at all is debatable. The Genocide Route, on the other hand, is jossed because it utterly breaks canon with Clover killing Flowey and Asgore, taking the latter's soul, and leaving the Underground with the five souls.
- Most likely jossed, since the devs confirmed that Sans, as well as Papyrus, Undyne, and Gaster, will not show up in this game, most likely for the lack of lore for them.
- Jossed. The final boss ultimately depends on the route taken (Ceroba for Pacifist, Flowey for Neutral, and Martlet for Genocide), but none of them are Sans. Sans doesn't show up in the game at all.
- Dalv's dialogue before and during his boss battle implies that he's encountered a human before, and that they were rather violent towards him.
- Chujin's video doesn't say anything about the monster that Kanako was with being killed, only attacked. It's possible that Dalv was asked to or offered to look after Kanako during Chujin's visit, since he seems to like children if him wanting to make books for them is any indication.
- Kanako's room has a drawing of Dalv on the wall, implying that she's met him before.
- Depending on your FUN value, the pillars in the Dark Ruins can show a different image instead of the cat drawing. One of them is of a hooded Dalv, with lines that make it look like he's running. Another is Axis, which seems out of place. Another one is what appears to be the blue-souled human, with the pillar being broken to indicate that they were killed. And the last one is of a human SOUL. Put together, these seem to spell out a story: the human attacked Dalv, causing him to run away, Axis was sent after the human, he killed them, and then Chujin temporarily took possession of their SOUL.
- The end credits of the Pacifist route shows Ceroba bringing corn to Dalv's new house, further showing the connection between him and her family.
- Neutral: Clover is absorbed into Flowey, technically becoming a monster by proxy.
- Genocide: Clover may have subconsciously realized they are doing the same thing the monsters did to the other humans: killing indiscriminately. Once they reach Axis and give in to their rage, their soul also accepts that they're a monster and changes accordingly.
- Pacifist: Clover sympathizes with Monsterkind’s struggle, realizing they've gone through similar things. It’s an inverse of the genocide route, where Clover sees monsters and themselves as the same, not as murderers, but as kindred spirits. Their soul agrees, and changes accordingly.