What happens if you spare sans in his fight before he asks you to? What are the options and what happens when you select them?

3 Answers

Nothing different will happen and his fight will continue as normal.

Nothing will happen. If you try to spare him prematurely, he'll continue the fight as planned. The only time in which you can spare him is when he offers to spare you.

Nothing. He won't say anything, he'll just attack normally, as if you healed or ACTed. Also, when he tries to SPARE you, he will simply say "Friendship... is great, right? Let's stop fighting."

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