The last five words are f**king bullshit. A red slash animation appears on the screen, and if you are playing on PC, the game switches to windowed mode and has the game screen shake as the screen fills with 9's, indicating you damaging the game itself. And Chara is the one who sacrificed themselves to Asriel to bring back 6 dying human souls and go back and free the monsters. So you are the evil one for going genocide, Chara is the one following along with what you are doing. So yeah, F**KING BULLSHIT.