You are fighting through the last section of the level when the last mind flayer that was at 1 punch to be killed threw herself to the floor and started begging for mercy, searching for mercy inside you

The MindFlayer: "W-Wait! w-we can talk, just p-please, have mercy on me, please, I'm b-begging you"

The mind flayer is looking at you with some look that makes you feel empathy. Some blood starts falling through an open wound and she groans in pain.

So what do you do? Kill the enemy or spare the enemy?