Board Thread:General Discussion/@comment-32182236-20181101220519/@comment-31536324-20181104015155

"How do we know that Flowey wasn't actually talking to Chara? That's my hypothesis, by the way. Chara's the narrator, if Flowey was talking to Chara, we'd hear it, and it'd look like he was talking to Frisk."

While he does name drop Chara in that speech, nothing about Chara indicates that they're the one responsible for the RESETS. And given that Flowey up to this point mixed Frisk and Chara together, it wouldn't be that far fetched to think that he thought he was talking to Chara, but actually talking to the Anomaly.

"If the player was canon, that'd serve as a link between the two timeline-wise.

From what we know, though, he only said that it was an alternate world, and that the world of Undertale is unaffected by the events of Deltarune. That DOES rule Frisk out, though, if we are to trust what he says."

I think he meant that more in a sense of Deltarune not affecting Undertale itself, as in not changing the events we saw in the original game. The only thing it would really do is serve as an explanation on Sans and Papyrus' origins, and Sans speeches in Genocide.

Other then that, there wouldn't be much connection other than similarities.