I made this imagining how the Vs. Kris Battle on the Weird Route would be, and then made those drawings to concretize that
I tryed to make them look like a mix of the Knight, Shadow Mantle Holder's mouth(which propositaly is not smiling) and Kris's hair being a helmet(that uncanningly looks like Knuckles)
I put a ragged wing because cool and because Shadow Mantle(Eram, too.)
When Roaring they would take a Grimm-like pose and open a mouth with jagged teeth, and a faint glowing red eye.
Also, their shoulder pads have... certain colors.
During the fight, i imagine it like this:
In the Light World, everything is shrouded in a Snowstorm. There is only Noelle, that is in her Dark World attire and suspended like Spamton NEO by Red Strings that extend to the sky. Then, the screen goes a bit to the right and shows the Knight, still, floating in the air with that crossed arms sprite, looking at Noelle. Then, when they barely take their sword out, the UNDERTALE battle start happens and Noelle and the Knight enter in battle(with Undertale UI, since they're in the Light World). The player rapidly uses ATTACK and kills the Knight with a Snowgrave, dealing 999999 damage to them. The Ice Prism shatters, and breaks. Only the Knight's SOUL, a big monster one with a small human one Inside, remains. Floating. Then, suddenly, Kris jumps on-screen(still battle UI) and takes the SOUL, forcefully inserting it Inside themselves. Suddenly, a cloud of Darkness involve them, and then one wing exits the cloud like Zenith Martlet, then the other arm existe, the Black Knife falling gently on their hand. Then, the cloud simply disappears, and Kris Knight appears. The Player Snowgraves them, and everything disacelerates. . . Then, the screen goes Black and MISS appears. Kris then dodges the pillar of Ice. And their turn begins. First, the SOUL is already orange, then Kris throws the Sword down as if making a Fountain, and it needs to be dodged. Then, an warning covers all the bullet board and Kris fly with the Sword in front of them, only dodgeable by using an Invincibility Dash. Again turn of The Player, and, once again, a Snowgrave. MISS.
Then, the Bullet Board goes to the side of the screen and Kris starts shooting Gaster Blaster beams aimed at the SOUL, which can be normally dodged or dashed away from. Sometimes, the Black Knife sometimes goes and try to hit the SOUL, too. Third turn. Snowgrave. MISS.
This time, the Bullet Board is the same size as the dialogue box. Kris waits some time holding the Sword, before throwing it like as if opening a Fountain, and, indeed, opening one(the Fountain does 2 damage regardless of DF or Armor). The screen fills on Darkness, and everyone there is teleported to a Dark World that is only IMAGE_DEPTH and the Fountain on the back, glowing. Deltarune UI activates. This time, when the player clicks "FIGHT" they're instantly transported to battle, and Kris tryes to do the First attack, but is Snowgraved by Noelle and barely defends it by holding the Black Knife with telechinesis. Then, the battle continues without the player having their turn, Kris attacking them and Noelle trying to hit Kris. If an Snowgrave hits, Kris defends by blocking with the Sword. After some time, the Player can have their turn, and if they FIGHT again, they are instantly thrown in the Bullet Board again. This time, the Bullet Board is infinitely extending up and down, and two small Swords with hitbox block the way. Then, Kris makes like the Knight and opens a Huge Fountain (but slashing the ground instead of throwing Swords. The Fountain very fastly petrificates, and then the Small Swords disappears, and the Player starts to fastly go up. Then, the Titan breaks some eyes on the side and shoots lasers from them, only one specific spot safe. They can't be dodged by Invincibility Dash unless the Shadow Mantle is equiped(which, by that point in the game, is a very bad armor). Then, a massive Snowgrave freezes the Titan, and the Bullet Board ends, shooting the SOUL a small distance upwards before entering Noelle, that was already waiting at the top of the now frozen Fountain. An Ice platform is at the top of it, as an arena. The battle UI disappears like a Cutscene and then Noelle starts to Spam(ton) Snowgraves at Kris from various angles, until they are cornered by 2 other active Ice Pillars, and then Noelle throws one last Snowgrave... *(the game disacelerates. The screen gets darker and darker. Only Kris don't disappears. Then they fade back to Light World form. The Voice appears "..." And says: "YOU SEEM TO BE STARING AT THE EDGE OF ETERNAL SLUMBER. HM. AFTER ALL THE INJURIES IT HAS DONE TO YOUR FRIENDS, YOU STILL SEEMS TO NOT BE ABLE TO DEFEAT THE MASTER AND THEIR PUPPET. LET US MAKE A SIMPLE TRACT. YOU SAVE MY SURVEY PROGRAM, AND I HELP YOU.")
(Kris accepts the tract. "(even by the brink of Death, you feel... Like something you haven't felt since a... Very long time. Your new SOUL... Is Shining With DETERMINATION.)")
Suddenly, the screen returns to normal and t̶h̶e̶ V̶e̶s̶s̶e̶l̶ Frisk(in colors!) Shields Kris with their sword from the Dark World form.(remember Kris is now a strange Knight-like thing) And then Phase 3 starts, with Frisk and Kris fighting. And your DF was set to 0.
funny how i talked more than showing my art. Still, do u think that Idea was cool?




