You hit Undyne, her health depleting to zero.

Her whole body starts to melt.

"T-this world w-will live on!"

She dusts, but her SOUL doesn't shatter.

You continue to Hotland.

You go into the lab. And....Alyphs isn't there.....

Mettaton is.

He talks for a while, then leaves.

You grab the instant noodles from the fridge and start to continue genocide.

[Hotland]