"In a Genocide Route, Chara kills you as you are begging desperately for your life, your face made to look like 'his', and they attack you more viciously than anyone else. Naturally, they would hate you - you betrayed them, after all."    

"With all that LOVE from killing everything underground, I doubt they could even register any emotional pain from killing you, Flowey."    

"But maybe with our power, we can make you see one of those genocide runs. But only if you really want to. Do you accept?"