"So tell me, Mettaton." They have not blinked first. So will you, Mettaton? Will you blink before I do?

God - but they hope so.

"Seeing as you are quite the expert on the subject," Chara continues. "Tell me. How might I fix those mistakes of mine? How might I salvage the world I callously broke, irreversibly? A simple apology, do you think? Will that suffice? Or shall I take it a step further - a peck on the cheek and a bouquet of flowers?"

The irony there appeals to them.

"Or perhaps that would be in poor taste."