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Zero executing Ryūenjin.
"Up + S.M. button on the ground. A powerful attack that burns enemies with flames. Some objects may be burned with this technique."
―In-game text, Mega Man X4

Ryuenjin, or Ryuuenjin (龍炎刃? lit. "Dragon Flame Blade"), is the special technique that Zero learns after defeating Magma Dragoon in Mega Man X4. By pressing the S.M. Button and UP on the D-pad while Zero is on the ground, he will jump up diagonally with a fiery Z-Sabre blade. This technique is quite powerful and is capable of striking multiple hits on a target, with the possibility of destroying them. Because of its nature, Ryuenjin can be used to burn the wooden pieces in Web Spider's stage.

In Tatsunoko vs. Capcom and Marvel vs. Capcom 3, this is Zero's main anti-air "Shouryuuken" style special (F, D, DF + Atk). The stronger the version, the more hits and height are put into the move. In the former, Zero can perform this in midair and a flameless version of the attack appears as his Variable Counter (a possible noding the original "Rising" skill). In the latter, Zero can no longer perform this in midair due to the inclusion of Raikousen (which has the same command as Ryuuenjin but only in midair).

Ryuenjin causes a weakness reaction against Cyber Peacock, Frost Walrus and Reaper Sigma's first form. It is also the technique which causes the most damage to Iris and Sigma's cannon form.

Damage Data Chart

Damage values in units in Mega Man X4.

X4-Icon-Zero-Ryuenjin Ryuenjin
Boss Damage
Egergion --
Web Spider 3
Split Mushroom 2
Cyber Peacock 4
Storm Owl 2
Magma Dragoon 0
Frost Walrus 5
Jet Stingray 0
Slash Beast 2
Tentoroid 2
Generaid Core 2
Eyezard 3
DG-42L 2
Colonel 2
Iris 4
General 2
Reaper Sigma: 1st Phase 6
Reaper Sigma: 2nd Phase 0
Ugly Face Sigma 0
Cannon Sigma 4
  • Minibosses such as Tentoroid and DG-42L and some bosses do not have an invincibility period when struck, so Ryuenjin can deal a tremendous amount of damage as it can inflict multiple hits. Damages listed on this chart is damage dealt per hit, not the total amount of damage done.


See also

Similar Techniques

Counterpart to this Technique

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