Goat Dad

"Human I promise you... For as long as you remain here... My wife and I will take care of you as best we can. We can sit in the living room, telling stories, eating butterscotch pie... We could be like... Like a family...""

- Asgore talks to Frisk after the battle on the neutral route.

Goat Dad is the family ship between Asgore Dreemurr and Frisk from the Undertale fandom.

Canon
Asgore greets the protagonist when they arrive in the Throne Room, where he was watering flowers, visibly taken aback by their arrival. He comforts them as he brings them to the barrier, giving them several opportunities to turn back if they have anything left to do before the fight. Asgore does not mind the delay, admitting that he is not ready either.

Before fighting, Asgore tells the protagonist that it was nice knowing them. He then draws his trident and destroys the MERCY button. Fighting Asgore is the only way to progress to the ending.

Much like with Toriel, attacking Asgore when he is at low HP deals significantly greater damage. However, he survives the attack with a small amount of health remaining and kneels in defeat, talking to the protagonist about his declaration of war against humanity, admitting that he only wanted to give the monsters hope by continuing the war, and asking them to take his SOUL to escape the Underground.

The protagonist is given the choice of killing Asgore by selecting the FIGHT button or sparing him by choosing the partially repaired MERCY button.

Moments

 * It is Asgore's voice that Frisk hears when they dies. Asgore says that the protagonist should not give up and he needs to be decisive.

Fanon
People interpret their relationship in fanon differently. In some fan works, we see how Frisk is trying to help Asgore get back together with Toriel, and also spends time in his court and they have a nice conversation about something. Also, there are works in which Frisk thinks that Asgore killed the rest of the fallen children, which makes their relationship a little more complicated.

In a fairly popular AU called Underswap, Asgore was Frisk's adoptive parent before they died.

Fandom

 * FAN FICTION