[SPOLIER WARNING] So you finally made it. The end of your journey is at hand. In a few moments, you will meet the king. Together... You will determine the future of this world. That's then. Now. You will be judged. You will be judged for your every action. You will be judged for every EXP you've earned. What's EXP? It's an acronym. It stands for "execution points." A way of quantifying the pain you have inflicted on others. When you kill someone, your EXP increases. When you have enough EXP, your LOVE increases. LOVE, too, is an acronym. It stands for "Level of Violence." A way of measuring someone's capacity to hurt. The more you kill, the easier it becomes to distance yourself. The more you distance yourself, the less you will hurt. The more easily you can bring yourself to hurt others.
... but you. you never gained any LOVE. 'course, that doesn't mean you're completely innocent or naive. just that you kept a certain tenderness in your heart. no matter the struggles or hardships you faced... you strived to do the right thing. you refused to hurt anyone. even when you ran away, you did it with a smile. you never gained LOVE, but you gained love. does that make sense? maybe not. ... now. you're about to face the greatest challenge of your entire journey. your actions here... will determine the fate of the entire world. if you refuse to fight... asgore will take your soul and destroy humanity. but if you kill asgore and go home... monsters will remain trapped underground. what will you do? ... well, if i were you, i would have thrown in the towel by now. but you didn't get this far by giving up, did you? that's right. you have something called "determination." so long as you hold on... so long as you do what's in your heart... i believe you can do the right thing. alright. we're all counting on you, kid. good luck. - Sans (from Undertale by Toby Fox)