Their entire sprite uses the same blue color for all shading, which gives the illusion that their cape has blue stripes in a few of their sprites. Their skin turns cyan and their hair turns blue, which is most likely to reflect the lighting (or lack thereof) underground, in keeping with the visual and story themes of light and dark. They are dressed in silver armor over a blue bodysuit, and wear a short, torn pink cape. When Kris and Susie fall into the mysterious Dark World, Kris's sprite changes. This red eye can also be seen for a few frames when falling down to the Dark World.
In the brief moments when they tear the SOUL apart from their body, they’re revealed to have a red eye. One of Kris's distinct features is that the upper half of their face is overshadowed, which blocks visibility of their eyes. They wear a long-sleeved lime shirt with a single horizontal yellow stripe, and nondescript pants and shoes. Kris initially appears with messy dark maroon hair and a golden-yellow skin tone.