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The Zero Knuckle (ゼロナックル Zero Nakkuru) is a weapon created by Cerveau that is used by Zero in Mega Man Zero 4,[1] replacing both the Shield Boomerang and the rod weapons used in previous games. The Zero Knuckle consists of a Z-shaped chip implanted into Zero's palms that increases his strength.[2] By defeating an enemy with the Zero Knuckle, Zero will rip off parts of the enemy and use them as a weapon. A successful theft normally results in the destruction of most enemies, but Yadokroid and Lamplort X may survive this attack at least once due to having multiple parts, and some enemies lack usable parts. The weapons or parts can have a number of uses, and some have limited ammunition. If a stolen weapon is out of ammo or simply of no use any longer, it can be thrown away by pressing the Toss button (Select by default) or in the Sub Screen, which can hurt an enemy as well. The Zero Knuckle can be aimed in seven directions horizontally, up, and diagonally, and it can be charged for a stronger hit. The Zero Knuckle also allows Zero to grip and hang on some objects, either by using the Zero Knuckle on the object or by pressing up near it, the latter working even when not equipped by the player, and to pull objects such as the vines in the Underground Forest and Tech Kraken while he is hidden.

Since elemental chips have been omitted from the game, it is unknown if the Zero Knuckle is compatible with them like Zero's other weapons. Unlike the K Knuckle from Mega Man X8, the Zero Knuckle cannot make use of the EX Skills learned in the game.


List of Zero Knuckle weapons

Zero can hold only one of these weapons at a time, and the weapons cannot be carried over to other areas, being discarted in the end of a mission. The Weapon Plus Head Chip increases maximum ammo by 1. Mega Man Zero 4 has a total of 54 weapons, divided into five types:

  • Buster - Ranged attack. There are eighteen busters available with a variable number of uses and power.
  • Saber - A short ranged swinging attack with high attack power. There are five sabers available, three of them having unlimited uses. Their usage is similar to the Z Saber, except that they can't perform combos, the standard attack being like the third slash, and lack a walking slash, dashing slash, skull crush and EX Skills. While a single hit from most cause more damage than a Z Saber slash, a well done Z Saber combo can pass their damage, making them more suited against targets that are hard to hit with combos.
  • Rod - A thrust with variable power and range. There are twelve rods available. Except for three rods, they can be used any number of times. They can be aimed in eight directions, horizontally, vertically, and diagonally. Zero can only aim directly down while airborne.
  • Shield - Mainly used to block or reflect some enemy projectiles. With one exception, the five shields available can be used any number of times. Some can deal a small amount of damage.
  • Bomb - Mainly throws a bomb in an arc that explodes on impact, Gear Bomb and Gyro Boomerang being exceptions. There are fourteen available. They have the smallest number of uses, but many of them cause high damage.
Graphic Name Power Element Ammo Type Enemy Description
2WS
2-Way Shot
(2WAYショット)
2 None Buster Gyro Cannon H Fires 2 shots diagonally.
3WB
3-Way Bomb
(3WAYボム)
9/2 None x1 Bomb NicosCrabB Bomb that shoots 3 bullets on impact.
BB
Balloon Bomb
(バルーンボム)
8/4 None x1 Bomb NeedBalloon Explodes after being thrown a certain distance, firing 8 needles in all directions.
BS
Beam Shot
(ビームショット)
6 None Buster BeamWalker Fires a laser, it is more powerful than the buster shot, and pierces through enemies.
BR
Bee Rod
(ビーロッド)
4 None Rod Appnet Zero attacks with an Appnet's stinger.
Laser Gun
Bend Laser
(ベンドレーザー)
6 None x8 Buster E-Laser Laser that bends itself when it coincides vertically with an enemy, changing its direction either upwards or downwards.
BS
Blade Shield
(ブレードシールド)
1 None Shield SandDozer Reflects bullets. Also causes minimal damage when deployed.
BS
Blaze Shot
(ブレイズバスター,
"Blaze Buster")
4/7 Fire x8 Buster Variant Fire Fires a bomb forward, creating a flame that lingers for a moment. Can melt snow and burn some trucks in the first mission.
BT
Bound Tire
(バウンドタイヤ)
16 None x1 Bomb Kerberos Bounces off terrain, explodes after a few bounces. If it misses, Zero can pick it up again with the Zero Knuckle.
BB
Burst Bomb
(バーストボム)
4/6 x 4 None x3 Bomb Boxes in the first mission. Powerful bomb that explodes with a wider range than most other bombs.
CB
Cannon Buster
(キャノンバスター)
8 None x6 Buster RBCannon Lobs a green shot forward that bounces off terrain.
CK
Card Key
(カードキー)
4 None x1 Rod NicosCrabC Mainly used to open a door that leads to a Sub Tank. Immediately destroyed when used to attack an enemy.
CS
Cross Shot
(クロスショット)
4/2 None Buster Crossbyne Fires a spiked ball. Depending on when it hits something, spreads needles either all diagonal directions, or fires vertically and horizontally.
DP
Death Pierce
(デスピアス)
20 None x1 Saber One of Dr. Weil's 1st form attacks. Swings a powerful sword. Gets used up when an enemy is destroyed.
Spear
Drill Rod
(ドリルロッド)
3x9 None x6 Rod GangaGun Fires an extending drill that can pass through terrain, but not through shields. On enemy impact, it stops its extension and keeps drilling for a second, hitting up to nine times. Usage count only decreases when it hits something. Can destroy the Telly Bomb blocks in the Teleporter Base without decreasing uses.
DS
Drill Shot
(ドリルショット)
5x4 None x8 Buster Molegule Fires a single drill with moderate damage output, so it might pierce through weaker enemies.
EB
Egg Bomb
(エッグボム)
12x12 None x1 Bomb Fire Renant's Egg Bombs Powerful bomb that explodes with a wider range than most other bombs. Very similar to the Burst Bomb, but has only one shot.
EA
Electric Arm
(エレキアーム,
"Elec Arm")
6 Thunder Rod Pantheon Corpse A stab with an electric club. Short ranged, but fast and can be aimed in eight directions.
ER
Electric Rod
(エレキロッド,
"Elec Rod")
10/4 Thunder x6 Rod Raiken When the rod hits terrain, it sends sparks moving across the ground.
EN
Electric Nail
(エレキネイル,
"Elec Nail")
5/5 Thunder Rod EleDeserter Creates an electric orb that lingers for a few moments. Good for "nailing" enemies in place.
FS
Flame Sword
(フレイムソード)
10 Fire Saber Faital An incredibly strong sword. Can replace the Z-Saber due to its power, but cannot perform combos.
GB
Gear Bomb
(ギアボム)
14 None x1 Bomb Serpent Gear Normal bomb that travels straight horizontally.
GB
Gyro Boomerang
(ジャイロブーメラン)
10 None x1 Bomb Gyrator It acts like the thrown Shield Boomerang. It will get destroyed upon collision with a strong enemy. If it misses, Zero can pick it up again with the Zero Knuckle upon return.
HS
Heat Sabre
(ヒートサーベル)
12 Fire Rod Variant Fencer Zero thrusts forward a short distance. Deals Fire damage.
HB
Hive Bomb
(ハイブボム)
2 None x1 Bomb Beeneran Fires a bomb that summons 3 bees. If touched, the bees will hurt Zero.
IB
Ice Buster
(アイスバスター)
6 Ice x8 Buster Glacial Lobs a chunk of ice to freeze enemies. Can freeze the water from the fountains in the Hanging Gardens, making a temporary platform.
IS
Ice Shield
(アイスシールド)
1 Ice ∞* Shield Hechrysta Is used up after preventing a projectile, splitting into six directions and causing a small amount of damage.
IMShot
IM Shot
(アイムショット,
"Aim Shot")
2 None Buster Yadokroid Fires shots that are automatically aimed at nearby enemies. Better tracking than the Search Shot, but slower projectile speed.
IP
Iron Pipe
(てつパイプ)
12 None x6 Saber Iron Pipe found in Hibernation Chamber. Attacks by swinging an iron pipe.
JB
Joint Bomb
(ジョイントボム)
8/8 None x4 Bomb Bonsect Throws a joint from Bonsect's body.
L
Lamp
(でんとう)
- - Buster Lamps in Hibernation Chamber. Shines a light in front of Zero. Can be used to repel Scrap Elves in the Hibernation Chamber.
LS
Lamp Shield
(ランプシールド)
- - Shield Lamplort X's shield Blocks energy shots.
LB
Lamp Burner
(ランプバーナー)
3x16 Fire x6 Buster Lamplort X Flamethrower that hits multiple times. Can burn some obstacles in the first mission.
LS
Long Snapper
(ロングスナッパー)
2x5 None Rod Poplan A Poplan head is thrust from Zero's arm, hitting up to five times as it snaps its jaws. Can pass through terrain and shields.
MPN
MagPunch N
(マグネパンチN,
"Magne-Punch N")
4 None Rod MagnePaN A punch that repels MagnePaN and MagneMineN, and disables MagnePaS and MagneMineS.
MPS
MagPunch S
(マグネパンチS,
"Magne-Punch S")
4 None Rod MagnePaS A punch that repels MagnePaS and MagneMineS, and disables MagnePaN and MagneMineN.
MA
Mega Axe
(メガアックス)
16 None Saber Axeloid Acts like a non-elemental Flame Sword. It tends to be pretty convenient because of its power.
MH
Mega Hammer
(メガハンマー)
10 None Saber Moloid The same as the Mega Axe, but slower. Used to activate water pumps in the Human Settlement.
MS
Met Shield
(メットシールド)
- - Shield Mettaur Blocks energy shots, but so small it offers little cover.
MCB
Mini Craban B
(ミニクラバーンB)
12 None x1 Bomb Mini Craban B Normal bomb.
MC
Mini Craban R
(ミニクラバーンR)
12 None x1 Bomb Mini Craban R Normal bomb.
NB
Neon Bomb
(ネオンボム)
5x3 Thunder x2 Bomb CryoNeon Throws a bomb that leaves behind a large electric spark that lingers for a while.
RL
Reflect Laser
(リフレーザー,
"RefLaser")
4 None Buster RefleBeemer Fires two shots that reflect off of terrain. Slow rate of fire and low damage.
RB
Rising Bomb
(ライジングボム)
8/8 Fire x2 Bomb Bombadeer Throws a bomb, which upon impact with the ground, creates a single rising flame that lingers for a few moments.
SS
Search Shot
(サーチショット)
2 None Buster ArcCannon Fires regular pellet shots, but will automatically aim towards enemies.
SS
Sharp Shield
(シャープシールド)
1 None Shield Yadokroid's shell Similar to the Met Shield, but with a wider shield area. It also deals a little damage to enemies the moment Zero deploys it.
SS
Spread Shot
(スプレッドショット)
2x4 None Buster Cannon Hopper Fires a volley of four energy shots in a spread pattern.
SC
Steel Claw
(スティールクロウ)
10 None Rod Variant Claw Attacks with giant metal claws.
TR
Tang Rod
(タングロッド,
"Tongue Rod")
4x2 None Rod Kerosh Has a good range and can penetrate enemies, but is a bit slow.
TS
Tri Shot
(トライショット)
4 None Buster Triaformer Automatically aims at targets similarly to the IM Shot, but the shots linger for a moment after being fired.
VS
Vertical Shot
(バーチカルショット)
4 None Buster MeduHopper Does considerably more damage than normal shots. Can only fire up and down, its usefulness depending on the terrain and target.
WG
Water Gun
(ウォーターガン)
1 None x8 Buster Water pumps in the Human Settlement mission. Fires water for a short distance, weak against enemies but extinguishes fires.
WB
Wave Bomb
(ウェーブボム)
8/8x8 Fire x1 Bomb Bongal Throws a bomb, which upon impact with the ground, creates a line of flames which linger for a few moments.
WB
Wide Buster
(ワイドバスター)
5/4 None x4 Buster Variant Missile Fires a large missile, which blows up after traveling a very short distance, but summons 5 smaller missiles with unlimited range.

Mega Man X DiVE

Zero Knuckle appeared as one of the Active Skills from the Zero (Z) Hunter Program in Mega Man X DiVE. It is a short ranged attack that causes damage and has a chance of temporarily immobilizing targets. As Zero (Z) is upgraded, new effects become available for the skill. The skill has three chips, but only one can be equipped at a time: Power Increase rises the skill's damage rate by 5%, Armed Destruction makes the attack temporarily reduce the target's attack power, and Seize Weapon has a chance to temporarily disable a weapon from other player in the Arena.

Zero (Z) can also gain two Passive Skills, Show Time and Life Steal, that respectively gives the Zero Knuckle a barrier after use and a chance of stealing life energy from the target to recover Zero's own energy. He also has two Fixed DNA upgrades, Clean Hit, which prevents the immobility caused by it to be removed by other effects and ignores Preventive Shields, and Chip Upgrade, which increases the chance of triggering Life Steal by 50%.

Trivia

  • The artwork of Omega from Mega Man ZX show him having what appears to be a knuckle on his own, but with an Omega symbol (Ω) instead of a Z. However, as his moves in the game are the same as Mega Man Zero 3, he was never shown using it.

References

  1. Mega Man Zero 4 instruction manuals.
  2. "Did you try out your Zero Knuckle yet? You probably already know about it, but it's a weapon on board a chip implanted into your hand. It gives you a big strength boost that comes in handy when attacking enemies or stealing their weapons. It doesn't work for every enemy, but for the ones it does, just finish them off with the Zero Knuckles to grab their weapon." - Cerveau, Mega Man Zero 4


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