Ryuenjin

"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

Ryuenjin, or Ryuuenjin (龍炎刃), is the special technique that Zero learns after defeating Magma Dragoon in Mega Man X4. This technique is based off Magma Dragoon's ability to perform uppercut/upward attack with flame. 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-Saber 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.

Ryuenjin causes a weakness reaction against Cyber Peacock, Frost Walrus and 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.


 * 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.

Other appearances

 * Ryuenjin is used by Omega and Model OX in Mega Man Zero 3 and Mega Man ZX.
 * Ryuenjin is one of Zero's skills in Rockman X DiVE.
 * Ryuenjin, alongside Hyouretsuzan, is one of Zero's skills in Shironeko Project. When used, Zero rises with Ryuenjin, causing fire damage and having a chance to burn enemies, then falls with Hyouretsuzan, causing water damage and having a chance to freeze enemies.

Fighting games
In Tatsunoko vs. Capcom and Marvel vs. Capcom 3, this is Zero's main anti-air technique, similar to a "Shoryuken" style special (F, D, DF + Atk). The stronger the version, the more hits and height are put into the move. He is also able to use it as his primary assist attack in Tatsunoko vs. Capcom, though in Marvel vs. Capcom 3 he is able to have Hadangeki and Shippuuga as assists.

In Tatsunoko vs. Capcom, Zero can perform Ryuenjin in midair and a flameless version of the attack appears as his Variable Counter (a possible noding the original "Rising" skill as well as some of Zero's other rising slash variations). It is often the main air combo finisher to most of his air combos and is a bit subpar for an assist, though it can help with some combos if used right.

In Marvel vs. Capcom 3, Zero can no longer perform this in midair due to the inclusion of Raikousen (which has the same command as Ryuenjin, but only in midair). In Marvel vs. Capcom: Infinite, Zero can perform a Hyouretsuzan if he releases a Lv. 3 Hyper Zero Blaster charge during Ryuenjin's animation.

Ryuenjin is also one of the attacks used by the Zero Assist Trophy in Super Smash Bros. Ultimate.

Similar Techniques

 * Rising from Mega Man Xtreme 2
 * E-Blade from Mega Man X5

Counterpart to this Technique

 * Rising Fire

Trivia

 * This technique is the only one of Zero's moveset that it is the main weakness of more than one Maverick. Being Rising Fire's counterpart, it is effective against Frost Walrus, but also against Cyber Peacock (whose weakness should be the technique gained from Split Mushroom, Kuuenzan).