After they head towards the city, Sans tells him about his plan, and they head off. Once he's in Underswap, he begins to grow all weepy with their universe's Surface. Underfell!Sans is disgusted after Ink is told by Sans that he's coming along, leading him to throw up ink.
With Ink being set free, he paints his side where Cross threw his HACK Knife at.
While the two of them wait for Ink to come back, Sans begins annoying Underfell!Sans with the echo flowers.
It was enough to free Underfell!Sans from Cross, and before he could deal the final blow, Cross leaves.Įxpecting that his brother wouldn't notice, he's shocked to know that his brother actually had him on camera, and informs him that he must leave from his sight, otherwise he'll use his head as spaghetti Underfell!Sans immediately follows his classic counterpart with that announcement. He's tied up by Ink!Sans, but after he's freed, Sans kicks him out using blue attacks. Struggling, he's suddenly stabbed to follow Cross's control, so that he could be used against Sans. Though he's able to impale him, he underestimated the strength that Cross was willing to take, and he clutches back. He isn't too happy over the fact that he's willing to do this, and even though he does gives a reason why he should be involved in his world somehow, Underfell!Sans fights him anyways. While Cross marks out parts of his world for the X-Event, Underfell!Sans comes up to him.