Dark Fountain

Dark Fountain is Kris's Final Smash.

Description
Kris will turn to the camera, and his eyes will glow red. He slices outward with a kitchen knife. Anyone caught in the slash is locked into the final smash. Then, Kris raises his knife, jumps up and then slams it hard in the ground. The ground begins to crack and then a surge of darkness floods the surrounding area, damaging opponents overtime. Anyone caught in the inital slash would take gradual damage.

Move Origin
At the end of Deltarune Chapter 2, there is a short cutscene showing Kris with a kitchen knife, ripping his soul out and slamming the knife into the ground, spawning a Dark Fountain which fills the room with darkness. Before he does this, he flashes his eyes toward the camera, which are glowing red.