Mega Man Classic Weapon Fusions

[Goomba98]

Dust Crusher + Super Arm = Junk Lifter: Mega Man picks up the trash blocks in Spark Man's stage which break like the Dust Crusher with bigger debris, or he can reach underground in places like Dust Man, Junk Man, or Grenade Man to dig up a throwable Dust Crusher.

Dust Crusher + Rolling Cutter = Trash Compacter: A melee weapon with a spinning Rolling Cutter, which cuts enemies into a Dust Crusher that you can hold on the buster like the Wheel Cutter.

Mirror Buster + Solar Flare = Solar Collector: Mega Man holds a solar panel to the sky and charges solar energy to shoot at his enemies.

[Gumballtoid]

Dust Crusher + Hyper Bomb = Shrapnel Bomb
A bomb that explodes and scatters piercing bits of metal in all directions.

Jewel Satellite + Crystal Eye = Crystal Avalanche
A barrier of gems that can be thrown. It shatters and the gem components will fall and damage anything they hit.

Magic Card + Rain Flush = Royal Flush
A deck of cards, which is shot skyward. It will then fall in two waves of ripping projectiles. Any items grabbed are given to its user.

Oil Slider + Hornet Chaser = Honey Bee
A large bee projectile, which does immense damage and rips. It also covers anything it hits with honey, which acts as an adhesive.

[Kage]

Black Hole + Black Hole Bomb
Big Bang
When Mega Man fires, a Black Hole instantly appears and sucks in even the largest of enemies at close range, and then, it explodes, wiping out or damaging all enemies within the whole screen.

Thunder Bolt + Wild Coil
Magnetic Coil
Works like Wild Coil, except when you charge it, an electric shield will surround you and it will attract enemies closer to you.

Hard Knuckle + Super Arrow
Super Knuckle
A huge hard knuckle appears that works like Super Arrow and allows you to stand on it.

Beat + Hyper Bomb
Beat Bomb
When Beat locks on to an enemy, it will explode upon contact and return to you.

[Zard1084]

Spark Shock + Freeze Cracker = Spark Cracker
A icy paralyzing shot that splits when it hits things can also freeze the lava in junkman's stage

Ice slasher + Slash claw = Ice Claw
its just a icy version of slash claw that can freeze things

Megabuster + any ice weapon = Ice Buster
A icy version of the megabuster that can freeze things when a fully charged shot is fired

Megabuster + Any bomb weapon = explode buster
A poweful megabuster with exploding shots that takes much longer to fully charge

i'll think up more later...

[OtakuAlex]

Bass Buster + Rain Flush = Flush Buster
It rapidly shoots the same liquid Rain Flush makes fall from the sky in a straight line.

Rain Flush + Astro Crush = Astro Flush
Both rain and comets (or whatever they are) fall down at the same time, chances of surviving are slim. Take 2x more ammo than the either weapon would normally take.

Drill Bomb + Super Arm = Super Drill
You launch a giant drill, it's so massive that it puts strain on your body and causes recoil. However, it's huge and does massive damage which makes the recoil worth it, unless you're below 30 HP.

Bass Buster + Mega Buster (with charge) = (insert clever name here, I don't have imagination for this name)
You charge it to the desired power, then rapidly shoot 7 shots, but you're vulnerable and can't move while you're rapidly shooting. Can be a destructive force if used correctly.

Flame Sword + Slash Claw = Flaming Claw
Slash at your opponent as you would usually do with Slash Claw, but it summons some small flames that have a chance of burning your opponent. And when I say burn, I mean the kind of burn you would get in a Pokémon battle.

[MusashiAA]

Mega Buster + Bass Buster (Bassnium disabled) = Super Plasma Blaster
Charging and multi-direction aiming are disabled, but shots deal one and a half damage instead of half or one damage, can shoot in rapid succession (manually, not automatically) and have up to 4 shots on screen.

Proto Buster + Bass Buster (Bassnium disabled) = Super Plasma Cannon
Literally functions like Mega Man X4's Fourth Armor secondary buster upgrade. Multi-direction aiming is disabled, and normal shots deal half damage, but charging causes to storage up to 3 charge shots that deal two damage each. These charged shots cause a temporary invulnerability period on all enemies when hit by them.

Mega Buster/Proto Buster + Bass Buster (Bassnium enabled) = Super Plasma Buster
Shoots solar-purified Bassnium shots that deal one and a half damage. Can be charged two levels for a two damage shot and a four damage shot. All shots go through walls, but only two shots can be on screen, walking is disabled when firing, and the fully charged shot produces recoil. Normal shots look deceptively elongated for some reason...

Mega Buster + Proto Buster = Super Power Buster
Normal uncharged shots are now disabled, but a new level of energy charge is now available, which takes double the time the Mega Buster or the Proto Buster take to fully charge, with a superslow and wide shot that deals a whooping five damage. The middle level (normal busters' charge time) shoots a normal speed bullet that deals two and a half damage. Shots go through walls, but the dissipate very quickly, so they travel only half a screen.

[Kage]

Flame Sword + Magma Bazooka
Magma Cut

A sword that can shoot out normal Magma Bazooka shots. When charged, the sword can extend farther when swung leaving behind a flame trail.

Tornado Blow + Top Spin
Tornado Spin

Works like Kirby's tornado ability.

Crash Bomb + Dive Missile
Crash Missile

A missile that can lock on and attach to enemies and explode like Crash Bomb.

Triple Blade + Break Dash
Blade Dash

An uncharged dash can slash through smaller shieldless enemies kind of like a dashing Tengu Blade. A charged dash can dash through shielded and large enemies, and when the dash collides with an enemy, Mega Man immediately slashes the enemy three times.

[Megaman94]

Toad + Freeze
Ice Rain - Hold down fire to make small ice chunks fall straight down in a small radius around you.

How about Astro Crush + Ice Slasher= Ice Crush
Ice Slasher falls from the sky like Astro Crush

Fire Storm + Plant Barrier= Fire Barrier
Kind of like the original Fire Storm, but the fire shield around Mega Man will stay until you throw it or an enemy hits it.

[AdrianMarceau]

This is actually pretty crazy, because I created a generator for this very thing several years back during the research and development phase of my Mega Man RPG!  :D

I wrote a quick script - an ability generator really - that crossed all the special weapons from the classic series (or variations of) with each other to create a whole buttload of unique abilities.  It's not formatted very pretty and needs a lot of work, but this absolutely reminded me of the generator and thought it might be fun to link it.  :P  

Mega Man RPG Ability Generator
http://rpg.megamanpoweredup.net/ability-generator.php

The basic idea was that each robot master could learn new permutations of their ability by defeating other robot masters and absorbing their data (the game takes places in the digital world, FYI).  Cut Man would defeat Ice Man to get the "Ice Cutter", Fire Man for the "Fire Cutter", etc.  To be fair, I never ended up using this exact system in the game.  The idea of manually creating and animating THAT MANY abilities was clearly lunacy and not possible for a fangame, but I do often go back to it from inspiration anyway.  Some of these sound pretty cool and could be worked into the game even without the originally intended mechanic.  

Anyway, thought it might be fun for everyone to see the idea fully fleshed out and realized.  :)

[Superjustinbros]

Darn Adrian. That list of fusion weapons was a good read. I thought up a possible Metal + Crash fusionwep, you throw it against a wall/player and boom, it shoots out Metal Blades in eight different directions!

I'll have to write up a full MM2 fusion wep chart one of these days.

[NemZ]

Ring + Shadow ... yeah, it's just the same thing again with a more cluttered sprite.  

[-FiniteZero-]

Fire + Heat + Pharaoh + Flame + Turbo + Sword + Magma + Solar = Super Ultra Mega Death Inferno Of Doom (Or SUMDID for short).

[Megaman94]

Fire + Heat + Pharaoh + Flame + Turbo + Sword + Magma + Solar = Super Ultra Mega Death Inferno Of Doom (Or SUMDID for short).

Mega Man is trying to save the planet, not burn it up XD

[OtakuAlex]

It's Neo on crack.

[MusashiAA]

Fire + Heat + Pharaoh + Flame + Turbo + Sword + Magma + Solar = Super Ultra Mega Death Inferno Of Doom (Or SUMDID for short).

Mega Man is trying to save the planet, not burn it up XD

So literally a nuke like this:

(click to show/hide)