It depends on you. - Do you want the ending where you want to wake up from the nightmare? Don't fight the penultimate boss, and accept his offer. - Do you want the undeniably worst ending? Don't accept the penultimate boss's offer when you don't have three Umbilical Cords. - Do you want to see the nightmare to the very end? Don't accept the penultimate boss's offer when you have three Umbilical Cords. Personally I think the first ending is the best.