Ryomen Sukuna

The King of Curses, playable. He pays for his techniques by punching: every landed swing and every kill hands Cursed Energy back, and that buys invisible slashes at any range, a fire arrow, a web of cuts, and a domain with no barrier. Best-armoured of the set, and the busiest kit here.

Needs Satoru Gojo, which is both a character and the shared library. The mod manager installs it for you.

Skills

Key	Skill
M1	Demonic Rush	A four-hit combo, heavy and slow; the last swing hits widest and throws.
M2	Cleave	Tap: a cross-cut at the crosshair, bursting as a sphere at range. Hold and he chants: let go after the first line for Grand Dismantle, one enormous blade dropped along the ground ahead, opening everything under it; finish the sentence for the World Splitting Dismantle, one cut across the whole field at chest height, from him out to the horizon. Drop the last line and the blade falls, and he will not chant for ten seconds. With an adapted Mahoraga of his side near him the sentence is two lines instead of three, for the same price. In the borrowed body, without that Mahoraga, it is one line ending in Grand Dismantle (see The Incarnation).
Shift	Instant Step	Cross behind an enemy almost instantly, straight through anyone standing in the way, opening their back on arrival.
R	Fuga — Open	A wind-up, then a fire arrow that detonates and leaves the crater burning. In the borrowed body this key is Ten Shadows: Mahoraga instead (see The Incarnation).
F	Dismantle	Tap for one piercing blade, hold to empty the magazine. Costs almost nothing.
T	Malevolent Shrine	A domain with no barrier, striking everything inside on a continuous rhythm. Other domains are walls; with no barrier, anyone walks in or out of this one. It pools and grows with allied domains opened touching it, like any room. Works in the air.
C	Reverse Cursed Technique	Hold, don't tap: heals out of a reserve that only damage taken fills. The fastest reversal in the set, and it roots him.
—	King of Curses	Armour. Kills return health and energy, and every landed swing pays energy back; his Mahoraga's kills pay half. A fall costs him a fifth of what it would. And he keeps his vessel: once a stage, an allied Yuji who dies near him stands back up two seconds later at half health, paid for out of Sukuna's bar.

The Incarnation

The lobby's Expansions panel has a row of his own, Sukuna: the Incarnation, on by default. With it on, a player's Sukuna starts every run in a borrowed body, wearing the skin picked in the lobby, and has to earn his own. The four-armed Heian Era outfit is the exception: it belongs to the form he takes later, so a lobby pick of it starts the run in Shinjuku Showdown.

In the borrowed body two keys are smaller:

• R is Ten Shadows: Mahoraga, whatever the lobby picked: Mahoraga fights beside him for 40 seconds, for 70 energy on a 60-second cooldown. He comes with the World-Cutting Slash: ping an enemy and he turns onto it and cuts it as soon as he faces it, at any range up to the cut's 45 m, on the slash's own 14-second cooldown. One at a time, and it will not cast while he carries the Ring of the Divine General (that Mahoraga is already his); Essence of Heresy takes the slot as it does on anyone.
• The M2 chant is one line, ending in Grand Dismantle. A Mahoraga of his side that has the World-Cutting Slash (his own from the call, the Ring's once it has adapted) within 60 m teaches him the rest: with one near, the sentence is two lines and ends in the World Splitting Dismantle, as it does in any body.

From the third stage (wave 11 in the Simulacrum), a caption says the vessel can go. Hold H for 0.6 seconds, between casts, and he takes his Heian form for the rest of the run: four arms, the special picked in the lobby back on R with the whole chant, ×1.15 damage, +20 armour, and the lower pair following every punch of Demonic Rush 0.08 seconds later (sooner with attack speed) for 35% of it, on-hit items rolling at that share. The lower pair moves as a pair of its own: fists in the run and under the punches, the Shrine sign under Dismantle and Cleave, open palms under the Torrent, cupped palms under Fuga; jjk_heian_arms safe|bold (local) swaps two tunings of it in play. The Mahoraga he called goes; the Ring's stays. The key is rebindable: Sukuna incarnation in Mod Options, section 00 - Controls.

Turn the row off and Sukuna is the kit the lobby shows from the first stage to the last, Heian Era included.

Reverse Cursed Technique

Hold C. Nothing but damage other people do to him fills the reserve — 45% of what he loses goes in, up to 30% of his maximum health — and holding the key turns it back into health. His is the fast one: a fifth of a second of focus and it is pouring at 18% of his maximum a second, twice anyone else's rate out of the smallest reserve, and climbing on from there the longer the key is held, drain and all — though his reserve is usually spent before the climb means much. Every hit taken breaks the focus and drops it back to a crawl, without interrupting the channel — a burn or bleed tick does not. At full focus it also clears burns, bleeds and healing bans every two seconds, for 4% of his maximum out of the reserve. There is no cooldown: energy to begin and the heaviest drain per second in the set to hold, and while it runs neither passive regeneration nor his kills pay anything into the bar. It roots him.

The key is rebindable: Reverse Cursed Technique in Mod Options, section 00 - Controls.

Loadout choices

Two slots hold more than one skill. Nothing is hidden, and with the Incarnation row off nothing is locked; with it on, the R picked here waits behind Ten Shadows until he takes his Heian form.

Slot	Alternative to the default
R	Spiderweb — a lattice of cuts that stands up in front of him and advances
M2	Torrent — a held piercing water line, swept with your aim; runs on its own gauge

Everything else

• Cursed energy — one red bar, the same rules across the set. Refills on its own, five times as fast out of combat, faster on melee hits and kills. A skill you can't afford won't fire and won't go on cooldown. Melee is Sukuna's loop: punch to afford the rest.
• Skins — five: Incarnated, King Unbound, Heian Era, Shinjuku Showdown, Sendai Colony. With the Incarnation row on, Heian Era is the Heian form's own and a lobby pick of it starts as Shinjuku Showdown.
• Config — Mod Options, or BepInEx/config/dev.marmennz.satorugojo.cfg. One config for the whole set; the side skills are F and Z; a mouse thumb button written there by hand counts from zero, so Mouse 4 is Mouse3. On a controller the side skills are D-Pad Left and Right, the domain D-Pad Up and RCT D-Pad Down, held; every pad bind is a dropdown in Mod Options.
• Multiplayer — everyone needs the same version of this and of Satoru Gojo; the lobby check refuses mismatches.
• Numbers — not on this page on purpose. Every in-game description is built from the constants the skill actually runs on.
• F1 opens the guide: pages of cards over the interface, each with an arrow to the skill, bar or slot it explains. The mouse wheel, ← / → or Page Up / Page Down turn the pages. It opens by itself the first time you play this survivor; Guide opens by itself in Mod Options turns that off.

Donations

Not needed, the mod is free. If you want to anyway: Solana RGHL3oHK7CRd7W63EqFa1WWSTUP2cWoBczsP4dWJ7Xw, Ethereum 0x89693F2e8e081Eaf9620F66fEE4271462452DCeA.

Credits

Made by Marmennz. The code, the tooling and these pages are written with an AI assistant (Claude); the kit design, the balance, the model and audio sourcing and every in-game test are Marmennz's own work. Bugs and requests: Discord, or u723bh87_. Model and audio sources are in MODEL_SOURCE.md and AUDIO_SOURCES.md, shipped with Satoru Gojo. Rights to Jujutsu Kaisen and to the original game assets belong to their owners; nothing here is sold.