Deltarune Kris Fight Susie: Every Time the Two Heroes Turn on Each Other

Does Kris ever fight Susie in Deltarune? We break down every clash, route difference, and battle tip behind the Deltarune Kris fight Susie debate.

Why the Deltarune Kris Fight Susie Question Won't Go Away

Few RPG friendships begin with a hallway threat and end with a shared campfire, but that is the road Kris and Susie travel. The Deltarune Kris fight Susie debate matters because these two are the emotional core of Toby Fox's episodic series: a silent human who never speaks for themselves, and a purple monster who slowly learns to care about someone other than herself. If they ever truly fought, it would hit harder than any boss in the game. That is exactly why so many players go looking for a Deltarune Kris fight Susie moment that may not exist yet.

Deltarune is the parallel-universe successor to Undertale, and it keeps the same fight-or-spare philosophy: every battle can be won with violence or with patience. Chapters 1 and 2 are available as a free demo, while Chapters 3 and 4 arrived on Steam in June 2025, expanding the story significantly. You can grab the latest version from the official Deltarune website or check the DELTARUNE Steam page for updates.

This guide covers who Kris and Susie really are, every moment their tempers flare, whether an actual battle between them is possible, and how to keep them working as a team when it counts.

Who Are Kris and Susie?

Kris is the silent protagonist — the "vessel" the player controls. They never speak a line of dialogue, live with Toriel, and have a habit of doing unsettling things once the lights go out. Susie is the school bully who gets dragged into the Dark World alongside them, swinging an axe first and asking questions never.

Their dynamic is the engine of the whole story. Susie starts the game treating Kris as a punching bag and ends it treating them as the one person she trusts. That reversal is why the Deltarune Kris fight Susie idea feels so loaded.

CharacterParty rolePersonalityCombat styleRelationship with the other
KrisSilent protagonist, player-controlledQuiet, stoic, secretly unpredictable at nightSword attacks, ACT, mercy optionsNever flinches at Susie, which confuses her
SusieBruiser and later co-leaderLoud, aggressive, secretly loyalHeavy axe damage, large HP poolStarts as Kris's tormentor, becomes their closest ally
RalseiHealer and peacemakerGentle, anxious, quietly powerfulHealing magic and PacifyThe bridge that holds Kris and Susie together
NoelleOptional party memberTimid, polite, braver than she looksIce magicPulled into Kris's worst choices on the alternate route

A Timeline of Kris and Susie's Clashes

Their relationship starts in hostility, not friendship. What surprises most players is how often the game stages a confrontation and then pulls back before anyone throws a punch.

Story beatWhat happensIs it a real fight?
Chapter 1, school hallwaySusie corners Kris and threatens them before the pair is sent to the supply closetNo — pure intimidation
Chapter 1, first Dark World encounterSusie nearly attacks the strangers she meets, including Ralsei, before Kris calms her downAlmost — the closest thing to a duel
Chapter 1, Card CastleSusie's loyalty splits between her new friends and LancerNarrative conflict, not combat
Chapter 2, Cyber WorldSusie wanders off with Lancer, leaving Kris and Ralsei to continue without herParty split, no battle
Chapter 2, endingKris acts alone in the middle of the night while Susie sleeps nearbyTension without a fight
Chapters 3–4The pair fight side by side, but the endings raise new questions about Kris's secretsDepends on the route

The pattern is consistent: Deltarune keeps placing Kris and Susie on the edge of violence, then pulls them back. That restraint is precisely what makes a future Kris fight Susie payoff so appealing to fans.

Can Kris Actually Fight Susie in Battle?

Short answer: not in the story as it currently stands. Susie is a permanent party member, and Deltarune's combat system targets enemies — not teammates. There is no command that lets you swing Kris's sword at your own ally.

ScenarioPossible today?Notes
Standard story battleNoSusie is locked into your party
Susie as a temporary obstacleRareSome scenes frame her as a threat, but never as a full boss
The alternate routeNot SusieOn that path, Susie is separated from the group while Kris works with Noelle
Fan-made mods and web portsYesCommunity projects add custom battles, but these are unofficial
Future chaptersUnknownCommunity speculation only — nothing confirmed

Because the game hides so much of Kris's interior life, players naturally wonder whether the two will eventually come to blows. Community reports often describe the Chapter 1 hallway scene as the "first fight," even though no damage is ever dealt and the whole moment lasts seconds.

Route by Route: How Much Susie Knows

The biggest factor in whether a Kris fight Susie scene could ever happen is not combat mechanics — it is information. Susie can only confront Kris about something she actually knows.

RouteKris's behaviorSusie's awarenessFan interpretation
Standard routeCooperative, kind, occasionally strangeHigh — she trusts Kris completelyFound family
Alternate routeManipulative and secretiveLow — she is away for the worst of itA betrayal waiting to happen
Chapter endingsKris acts alone after darkNoneThe clearest hint that a confrontation is still on the table

On the alternate route, Susie spends most of the Cyber World away from the party, which means she never witnesses what Kris does. If she ever learned the truth, the resulting confrontation would easily be the most devastating battle in the series — and the most emotionally expensive to play through.

What Players Say About a Kris Fight Susie Moment

Player experience varies wildly here, and it is worth separating fact from wishful thinking. Community reports on forums and fan wikis generally fall into three camps:

  • The duelists want a full Kris vs. Susie boss fight, arguing that the series has been building toward it since the hallway scene.
  • The purists insist a fight would break the found-family theme, since Susie's growth depends on trusting Kris.
  • The theorists point to Kris's nighttime behavior and argue that any future conflict will be one-sided — Kris acting, Susie reacting.

Search interest in this topic tends to spike whenever a new chapter drops, which tells you how much weight fans place on the pair's relationship. That said, no official material has ever confirmed a battle between them, and any "hidden Susie boss" claim you see should be treated as unverified until you can reproduce it yourself.

Battle Tips: Making Kris and Susie Work as a Team

If a real Kris fight Susie scenario does arrive someday, you will want to understand how both characters actually play. Here is how to get the most out of them as a duo.

TipWhy it works
Let Susie handle raw damageHer axe outpaces Kris's sword for most of the early game
Use Kris for ACT and mercyKris's ACT options unlock sparing routes and story dialogue
Keep Susie's TP topped upHer best skills are expensive, so build TP with cheap attacks first
Heal before you need toSusie's HP looks enormous until a boss lands a heavy hit
Split the roles clearlySusie bursts and tanks, Kris supports, Ralsei heals
Never skip party dialogueBanter frequently hints at how the two feel about each other

Players chasing the Kris fight Susie fantasy often forget that Deltarune rewards patience over aggression. Sparing enemies and choosing mercy consistently unlocks more story than brute force, and that philosophy is baked into how the two leads relate to each other.

FAQ

Does Kris ever fight Susie in Deltarune? Not in a full boss battle. The closest moments are the Chapter 1 hallway confrontation and Susie's near-attack on Ralsei, both of which resolve without combat. Any true Deltarune Kris fight Susie duel remains community speculation rather than confirmed content.

Can you attack Susie in battle? No. Susie is a party member, and Deltarune's battle commands only target enemies. There is no friendly-fire option in the standard game.

Is there a secret Susie boss fight in any chapter? There is no official one. Fan-made mods and unofficial web ports have added custom battles, but these are community projects and are not part of Toby Fox's release.

Why do fans want a Kris fight Susie scene so badly? Because their friendship is the emotional anchor of the series. Susie's growth from bully to loyal friend depends entirely on trusting Kris, so a betrayal would be the single biggest twist the story could deliver.