Nobody talks about this one. A fox becomes a king through nothing but patience and the smallest acts of kindness, told entirely through puppet animation so deliberate it forces you to watch frames you'd normally skip past. The movie moves at the speed of genuine change, not plot, which means it hits you quietly and stays with you longer than louder things do. This is what animation can do when it stops trying to impress you and just lets you sit inside a moment with a character.
Ou-sama ni Natta Kitsune is a short puppet animation film directed by Tadahito Mochinaga. The movie runs as a single episode and uses puppets rather than drawn animation.