But she still believes in him and fuels his confidence, all the while trying to prepare him for if his dreams get crushed one day, he can at least be good at cooking. She knows Papyrus is too weak to be a royal guard. She created the piano puzzle, meaning she most likely created Asriel's song in honor of him, a memorial for his family, whom she is close to. Undyne GIVES you a spear to block her own spears when she attacks you.