Undyne is the goddess of war, and takes her job very seriously. She is a natural born god.
We can see her with a robe of Greek descent. This robe provides no protection. Her hair is in a shape of a ponytail with a rubber band made of vegetation. She also wears red slippers. Even without any protection Undyne can still summon her weapon, a double-bladed spear.
A full-plated armor that covers all of her body except her face and hair. A fin-shaped armor piece extends from her helmet. Over the armored waist is a red colored skirt.
Undyne is similar to her original counterpart, being that all other gods and goddesses are given a role of the god that best fits their personality.