Board Thread:General Discussion/@comment-26006155-20200107155350/@comment-26907577-20200122141400

Just checked. Flowey doesn't use File 1 during the battle. I think it was just assumed that that was the one he used to store the "My World" SAVE in.

Ah yes.

Here's another curveball.

Sans doesn't remember giving Flowey a bad time.

our reports showed a massive anomaly in the timespace continuum. timelines jumping left and right, stopping and starting... until suddenly, everything ends. heh heh heh... that's your fault, isn't it?

Especially since it's possible to do a No-SAVE Genocide. At least some of those jumping timelines were Flowey's, and Sans blames you. So he can't know Flowey could SAVE.