Board Thread:Questions and Answers/@comment-27852551-20160223093522

I hate Flowey and want to kill him, but want a Pacifist Ending. It's my first time playing Undertale, so I don't know how the endings work. If I kill Flowey can I go back to an earlier save and fight him again, but spare him? Or do I have to play the whole game over? I just really hate Flowey. 