Undyne

Undyne is a major character and the third boss in Undertale. Undyne leads the Royal Guard, which protects Asgore and patrols the Underground to find humans. She pursues the protagonist throughout Waterfall, though she is inadvertently thwarted by Monster Kid. Undyne is a piscine, anthropomorphic monster. She has blue scales and a long red ponytail. She has red and blue fins on the sides of her head, and a pair of sharp, yellow, protruding teeth. She wears a red eyeshadow and has an eyepatch over her left eye. She also wears a black tank top and blue jeans, but debuts in armor varying in light...

Undyne is passionate about everything that she does. She acts quickly on her ideas and is steadfast in her beliefs. Though she wants to defeat the protagonist, she also tries to be fair and offers an explanation of how Green Mode works. Asgore taught her the value of pacifism, which is why Undyne se...