[Dark Seraph Lumine]

I can't think of all of them right now (I'm sure they'll come to me later) but here are a few:

The best one I can think of is Metal Man's "Metal Blade" because it makes short work of the first Wily Machine. VERY short work.

In X1 Chill Penguin's Weapon really makes short work of Spark Mandrill and Valguader, as does Flame Mammoth 's weapon of Chill Penguin. Storm Eagle's weapon on Flame Mammoth. Boomer Kwanger's Weapon on Sting Chameleon.

X2: Flame Stag's weapon on Morph Moth

X3: The Gravity Well from Gravity Beetle on Blast Hornet.

X4: Zero's flame saber weapon on both Cyber Peacock, and Frost Walrus, X's Split Mushroom Soul Body on Cyber Peacock. Both X and Zero's ice weapons on Jet Stingray. Both X and Zero's electric weapons on Split Mushroom.

X5: Zero's regular Z-Saber, and X's X-Buster (These guys were pushovers, except mainly the Skiver) Zero's Z-Saber on the Shadow Devil and Rangda Banga W/Lamda Bamda, X and Sigma's Gamma final form. Zero's Z-Saber or X's X-Buster on Dynamo.

X6: Zero:s Z-Buster on Blaze Heatnix and Blizzard Wolfang (Works WAY better than X's buster for some reason) X's Z-Saber on Nightmare Zero

X7: Believe it or not, Tornado Tonion's Volt Tornado from both X and Axl on Splash Warfly and Vanishing Gungaroo's ride armor ONLY (NOT on Gungaroo himself)

X8: Zero's Dark Mantis Weapon on Gravity Antonion. X, Zero and Axl's ice weapons on Vile and Burn Rooster. X and Axl's flame weapons on Bamboo Pandamonium. X' and Axl's electric weapons on Avalanche Yeti (especially Axl's weapon, because, when Yeti goes burrowing underground, you can point Axl's pistol down on the ground and shock Yeti and bring him back to the surface) Axl's ice weapon with the hovering move works good at breaking Seraph Lumine's annoying pre-Paradise Lost shields you have to shoot at to make them go away so so can actually damage Lumine. Zero and Axl's Dark Mantis weapons on Copy Sigma. X's Green Spinner on Optic Sunflower.


I'm sure there are more. These are what come to mind right now.

[Model_O]

Mega Man 1

Cutmans weapon works quite well on those enemies that skim the floor.

Mega Man 2

The metal blade, which takes the challenge out of the whole game.

Mega Man 3

Top Spin (its just bad ass)

Shadow Blade (Not as much of a whoring tool as the metal blade)

Mega Man 4

Pharoah shot, this thing acts as a shield and projectile.

Mega Man 5

.....

Mega Man 6

Yamato spear

Silver tomahawk

Mega Man 7

Freeze Cracker, LOL

Shade Mans weapon.

Mega Man 8

Thunder Claw

Flame Sword

Mega Man 9
Black Hole Bomb

Tornado Blow

Laser Trident.

Mega Man 10

Strike Ball

Tri-Blade

Mega Man and Bass

Burner mans weapon was cool

X1

Shotgun Ice and Storm Tornado

X2 Silk Shot and Flame Stags weapon charged

X3 Gravity Well

dont remember the X4-8 weapons too well.

Mega Man Zx/ZXa

Model H

Chronoforce

Model P (rapes alberts dragon)

[neo b-mega]

Megaman 10

wheel cutter (nitroman's weapon)

[TuKéZu]

Nearly every special weapon from MM9.

[ElectricFuneralPyre]

In Megaman X4, X's Twin Slasher was so useful! As for Zero, I'd say the Runjein was pretty potent as well.

[Aya]

Thunder Beam (MM1)
Top Spin (MM3)
Flash Stopper (MM4)
Every weapon in MM8.
Every weapon in MM9.

Storm Tornado (X1)
Spinning Blade (X3)

There's more, but I can't think of any from the top of my head right now.

[meowmeow]

x1-p. sting

x2. bubble splash

x3. ray splasher

x4.twin slasher

x5 wing spiral

x6 x's z saber

[Sigma Zero X]

Mega Man X:

X1:

Storm Tornado

X7:

X/Axl:

Volt Tornado
Splash Laser (Glide Armor X only)
G-Launcher (Axl only)

Zero:

Raijinshou
Hieijin

X8:

X/Alia:

Squeeze Bomb
Buster Parts I (Neutral Armor X only)

Zero/Layer:

Rasetsusen
Raikousen
Rekkyoudan
D-Glaive
Sigma Blade

Axl/Pallette:

Ray Gun
Flame Burner
Blast Launcher

Command Mission:

X:

All elemental busters
Limit Buster MKII
X-Buster MKIII
Brave Buster
Turbo Buster

Zero:

All elemental sabers
Z-Saber ++ and Z-Saber +++
All Z-Rapiers
Red Lotus Saber

Axl:

Axl Bullets 3
Manhunter
Auto Bullets
Ancient Gun

Massimo:

Both Shock Lances
Massive Lance Gamma
Interceptor
Beast Lancer

Marino:

All Beam Chakrams
Beam Dagger
All Elemental Stellas
Beam Wonder S
Beam Miracle S
All Elemental Comets
Beam Sword

Cinnamon:

Divine Hand
Full Metal Boxer
0 Effector
Kitty Gloves

Subweapons (most applies to everyone):

Power Charge
Generator
Combat Absorber
Shot Absorber
Super Absorber
Bait
Hawkeye
Force Missiles
Force Tomahawks
Heat Haze (Zero only)
Energy Field (Cinnamon only)
Vengeful Counter

Mega Man Legends

Legends 1:

Vacuum Arm
Spread Buster
Shining Laser
Drill Arm
Powered Buster

Legends 2:

Vacuum Arm
Shining Laser
Drill Arm
Blade Arm
Hyper Shell
Crusher

[zuschzero]

Games with best weapons are:

Mega Man 4
Mega Man and Bass
Mega Man 9
Mega Man X
Mega Man X2

[Jabon]

Hadoken and Giga Attack. Nuff said.

[starforcenetwork]

X1: Storm Tornado
Homing Torpedo
Fire Wave
Shotgun Ice

MM1: Thunder Beam
Fire Storm

MM2: Metal Blade
Crash Bomb

MM8: Flash Bomb
Astro Crush
Ice Wave
Tornado Hold

MM9: Tornado Blow
Laser Trident
Jewel Satellite

MM10: Water Shield
Metal Blade

[Rock Man X]

RockMan X4 / X5 / X6 's Ultimate Armor Giga Attack.

[Sigma Zero X]

I have a few more weapons to add:

Command Mission:

Zero:

Rei Ichimonji
Soul Saber

Massimo:

Jet Guillotine

Subweapons:

Turbo Clock

Legends 1:

Active Buster

Legends 2:

Homing Missile

[Vérité]

This is totally relevant

[Bluekirby2]

i actually made use of the thunder wool.

[Turian]

Most useful? Metal blade without a doubt. My personal favorite is the crash bomb, though.

[Princess Luna]

Quick Bommerang is ^So under-ratted.
It's quite strong.

[Turian]

Completely agree with you. Quick boomerang is underrated. Another of my favorites is the thunder weapon you get from cloud man in mm7. The name of it eludes me at the moment. But I really use it a lot in that game.

[Solren]

Doing "No Mega/X-Buster, Weapons Only" runs is a very nice way to figure out lots of useful ways to use bosses' weapons.

For instance...

In X1, the Shotgun Ice's spread recoil can be very useful whenever you get surrounded by a lot of enemies.
In X2, while not exactly "useful" you can have some fun with enemies by setting up traps with the Magnet Mine, and its also nice to get enemies in hard to reach places.
In X4, Aiming Laser is the same as Magnet Mine, isn't really useful either but damn! its a really fun weapon to fool around with.
And in X6, Metal Anchor? Summoning an army of Storm Eagles? It can't get more awesome than that.

X3, X5 and X8's boss weapons aren't useful at all in my opinion (overshadowed by X-Buster abilities), and It's been a while since I last played X7 so I don't remember them. And I don't wanna list the Classic series' weapons because I'm lazy, but if I had to name one without too much thinking, it would be the Nitro Wheel.

[Turian]

Solren, on 08 April 2012 - 08:10 PM, said:

Doing "No Mega/X-Buster, Weapons Only" runs is a very nice way to figure out lots of useful ways to use bosses' weapons.

For instance...

In X1, the Shotgun Ice's spread recoil can be very useful whenever you get surrounded by a lot of enemies.
In X2, while not exactly "useful" you can have some fun with enemies by setting up traps with the Magnet Mine, and its also nice to get enemies in hard to reach places.
In X4, Aiming Laser is the same as Magnet Mine, isn't really useful either but damn! its a really fun weapon to fool around with.
And in X6, Metal Anchor? Summoning an army of Storm Eagles? It can't get more awesome than that.

X3, X5 and X8's boss weapons aren't useful at all in my opinion (overshadowed by X-Buster abilities), and It's been a while since I last played X7 so I don't remember them. And I don't wanna list the Classic series' weapons because I'm lazy, but if I had to name one without too much thinking, it would be the Nitro Wheel.

First of all, I like your avatar. Second, Shotgun Ice is pretty good, so I agree with that. However, X8 had a pretty beast arsenal. The thunder dancer, the drift diamond, the melt creeper?! Those weapons are awesome! And for each weapon that X gets that you may not care for, Zero and Axl get a different version of it, so there is a pretty good chance that you will like their version of the weapon, if you didn't like X's. That Ice machine gun that Axl gets is pretty damn awesome.