THE Mega Man link collection

+ Save feature
+ Score and all score related things gotten rid of
+ Quick Weapon Switch with select button
+ Presentation updated to be more in-line with MM2
- Weird palette changes for Cut Man and Elec Man's stages but not that offensive.

+ Removes the infamous sliding Mega Man has in his movements in MM1 and makes the physics closer to MM3-6

+ Makes health and ammo pickups no longer pause the screen when obtained

+ HD texture pack aimed to make the game look 16-bit
+ Optional skin and music patches

+ Adds MM3 slide and MM5/6 Charge Shot to the game
+ Adds Quick Weapon Switch with Select Button

+ Replaces password system with SRAM saves
- Bug where it sends you back to the title screen instead of saving when combined with other patches however.

+ E-Tanks remain in your inventory upon a Game Over instead of disappearing, making it consistent with the later games.

+ Makes health and ammo pickups no longer pause the screen when obtained

+ Adds an intro to the game better explaining the story found in the manual
+ Adds in graphics that were cut from the final game like the more detailed backgrounds in Gemini and Top Man's stages.
+ Fixes the infamous Top Spin glitch where your weapon energy could instantly drain to 0 and makes it more useful in general
+ Proto Man is in his Break Man disguise throughout the entire game to fit in with the plot
+ Adds Quick Weapon Switch with select button
+ Adds an Exit Stage feature
+ Greatly reduces lag and makes it nearly nonexistent
+ Health and Ammo pickups no longer pause the screen
+ Adds farming spot before Rush Jet section in Doc Robot Needle so you are not forced to game over if you run out of energy
+ Has a Roll-Chan patch out for it!
- Rush Coil height is slightly off from the original

+ Includes every addition found in Mega Man 3 Improvement
+ Adds new screens to certain stages that felt too short in the original, most notably the Wily Castle has a lot of new additions to make it feel like a proper set of final levels with adequate challenge
+ Makes Hard Knuckle, Needle Cannon, and Gemini Laser slightly faster
+ Even more graphical additions on top of MM3I's
- No Roll-chan compatible patch (yet)

+ Adds visible health bars where the boss bar usually is for normal enemies in case you want that feature

+ First patch makes health and ammo pickups no longer pause the screen when obtained
+ Second patch makes the fade ins between loading screens faster

+ Reduces the lag found in the original game
+ Quick Weapon Switch with Select
+ Boss Health bars no longer take a million years to fill up
+ Screen transitions are faster
+ Comes in two different flavors: one patch with all of the above and one patch with just the lag reduction

+ Boss health bars fill up faster, good if you just want this addition standalone to vanilla

+ Charge Shot sound eventually fades out and stops destroying your ears

+ First patch makes health and ammo pickups no longer pause the screen when obtained
+ Second patch makes the fade ins between loading screens faster

+ Reduces the lag found in the original game
+ Quick Weapon Switch with Select
+ Reduces the i-frames of normal enemies to make them more like the other NES games
+ Charge Shot no longer cancels upon damage
+ Comes in three different flavors: one patch that just reduces lag, one with lag reduction, quick weapon switch, and i-frame reduction, and one with all of the above plus the charge shot change

+ Play as Proto Man in Mega Man 5.
+ Unlike other Proto Man hacks, this one actually goes beyond being an alt. skin and actually includes every mechanic Proto Man had in MM9 and 10!
+ Can choose between normal damage or 2x damage like in 9/10. still has double knockback though
+ Cutscenes completely changed to fit Proto Man
+ Beat replaced with a new attack for Proto Man and Darkman fight is different
+ Also includes a lot of small improvements like charge fade out, being able to slide-jump underwater, etc.
+ One of the highest quality character hacks out there, feels like an official addition to Mega Man 5

+Charge Shot sound eventually fades out and stops destroying your ears

+ First patch makes health and ammo pickups no longer pause the screen when obtained
+ Second patch makes the fade ins between loading screens faster

+ Reduces the lag found in the original game
+ You are now able to jump out of a slide again THANK YOU BASED PURASABE
+ Quick Weapon Switch with Select button
+ Quick Rush Adapter Switching with Select+Start+Up or Select+Start+Down
+ Health and ammo drops no longer pause the screen
+ Comes in two different flavors: one patch with all of the above and one patch with just the lag reduction

+ Standalone version that only adds the change to the slide
- No longer available on his site so had to reupload it

+Charge Shot sound eventually fades out and stops destroying your ears

+ First patch makes health and ammo pickups no longer pause the screen when obtained
+ Second patch makes the fade ins between loading screens faster

+ Restores a lot of the things from the Japanese version such as the flavor text below Robot Master names and getting different characters such as Roll and Auto for Weapon Get screens instead of just Light all the time
+ Translation is closer to the Japanese ("......" instead of "I am more than just a robot, die Wily!")
+ Can skip cutscenes with the Start button, a godsend for speedrunners constantly resetting the intro stage

+ Same as above except keeps the American ending

+ Only adds the flavor text below the bosses

+ Shortens charge time
+ Increases i-frames when getting hit
+ Changes font to be closer to the NES games
+ Lag reduction
+ Faster text

+ Japanese opening and ending songs restored
+ Japanese voices for all cutscenes and in-game voiced dialogue

+ Switch between Mega Man and Bass on the fly by jumping while pressing Select (useful for CD hunting and stage navigation)

+ Lets you equip more than one shop part at the same time

+ Codes for Dolphin emulator to enable quick weapon switching
- Kinda buggy

+ Makes the game fully colorized
+ Significantly reduces slowdown

+ Makes the music less murder to your ears

+ Makes the game kinda colorized

+ Makes the game fully colorized
+ Significantly reduces slowdown

+ Restores the ending for Story and Champion modes
+ Lets you play as Wily in Exhibition mode
+ Allows you to set the Time and S.Shoots up to 99 in the Options menu
- Why would you play this game

+ First patch in the folder lets X dash from the start and instead makes the Leg Part add the Air Dash instead
+ Second optional patch changes the wall jump to behave like the later X games where you can hold to do a stronger jump rather than timing it
- Dash jumping off walls is awkward with second patch

+ Adds SA-1 co-processor to speed up the game
+ Passwords and control scheme can now be saved to the SRAM
+ Modifies Sub-Tanks so that they stop depleting at full health, similar to the Zero and ZX series

+ Retranslates the game to be closer to the Japanese original. 
+ Optional patches whether you want to keep the localized terms (Mavericks, Reploid, Vile) or the Japanese terms (Irregulars, Repliroid, VAVA)

+ Retranslates the game to be closer to the Japanese original
+ Optional patches whether you want to keep the localized terms (Mavericks, Reploid, Serges) or Japanese terms (Irregulars, Repliroid, Sageese)

+ Makes Zero fully playable instead of all the restrictions placed upon him in the original
+ Balances his health pool and damage slightly to make up for this
+ Can collect items/armors for X
+ Can use sub-weapons and Air Dash and use Ride Armors
+ Adds a Save/Load feature
+ Adds unique dialogue for using Zero

+ Retranslates the game to be closer to the Japanese original. 
+ Optional patches whether you want to keep the localized terms (Mavericks, Reploid, Vile) or Japanese terms (Irregulars, Repliroid, VAVA)
 - Not compatible with Zero Project

+ Restores Japanese opening and ending themes
+ Replaces voices with Japanese ones
+ Retranslated script
+ Adds back voice clips for Maverick bosses before and during battle

+ Option to make Alia shut up
+ X and Zero both keep item bonuses
+ Script completely retranslated
+ Cutscene font changed to a more readable one
+ Mavericks names  changed back to normal
+ Sprite fixes
+ “Monkey” and “Mizu no Naka” opening and ending themes restored
+ Adds unused tracks such as Tidal Whale's and the unused Dr. Light theme
+ Restores voice clips from Japanese version
+ All parts are obtainable in a single playthrough
+ Fast-forward dialogue with Start
+ Halves damage for X vs Zero fight to make it more climactic
+ Pause menu transition is faster
+ Cannon/Shuttle RNG modified
+ Tidal Whale's stage goes by a little bit faster
+ Armors can now be equipped without needing the full set
+ Various other QoL improvements and optional patches

+ A highly customizable patch where you can toggle on and off numerous things for the game such as turning off Nightmare effects, changing the amount of soul orbs dropped, making reploids and parts not permanently missable, etc. You can add as many or as little changes to X6 as you want with this. Too many changes to list in fact, so go check out the page.
+ Also includes a relocalization that isn't google translate tier

+ Changes a lot of things about the game to improve the overall pacing
+ Better sound mixing
+ Unlocking X only requires 32 rescued reploids as opposed to 64
+ Reploids die after 3 hits as opposed to 1
+ Better wall jump physics
+ Getting a heart tank increases every character's health
- Still X7 at its core

+ Enables Xtreme mode (AKA the full game) at the very start of the game

+ Changes VAVA back to Vile
+ Also decapitalizes Zero's name

+ Same as the Xtreme 1 patch

+ Changes the dash to the start button, similar to Xtreme 1
- Doesn't work for Zero's airdash

+ Undubs every line of dialogue
+ Restores "Jounetsu Setsuna" opening song

+ Restores the Maverick stage themes during Vile's campaign

+ Restores the blood removed from the US version
+ Decensors the script ("Kill" instead of "Retire")

+ Restores the blood removed from the US version
+ Decensors the script ("Kill" instead of "Retire")

+ Restores the blood removed from the US version
+ Decensors the script ("Kill" instead of "Retire")

+ Restores the blood removed from the US version
+ Decensors the script ("Kill" instead of "Retire")

+ Expands the screen resolution of all four games to the DS screen size instead of GBA's.
- Blank space where the borders would originally end and text boxes are not top-aligned but hack is still early in development so it might be fixed in the future

+ Lets you access the Zero 3 and 4 boss rooms without requiring the cartridges in the DS slot

+ Adds English text to Japanese version of ZX 
+ Includes Slot-2 Patch

+ Adds English text to Japanese ZXA

+/- Removes all voices from US version of ZXA in case you want everyone to shut up

+ Music mods that add the remastered/remixed songs from the various OST albums to every game
+ Undub mods for the ZX series
+ HD textures mod that upscales the cutscene artwork for every game properly and removes the awful filter
+ A mod that also removes ZX Advent's in-game dialogue
+ Blood restoration mod

+Fixes the godawful underwater slowdown
+Weapon upgrade prices are lower

+ Restores Jack-In and Navi Customizer animations
+ NaviCust programs can now be uncompressed
+ Adds color back to the internet during the postgame

+ Adds Duo, PrixPowr and Z-Saber chips to Number Trader (even though the Z-Saber already had a code for it)
+ Fixes some typos
+ Fixes WoodMan scenario
- Game still sucks

+ Undubs all voiced dialogue
+ Restores "Be Somewhere" intro song

+/- Removes all voice acting from the game if you're into that

+ Cut postgame content (including the Boktai crossover) restored and translated
+ Beast Link Gate and E-Reader text translated
+ SpoutMan changed back to AquaMan
+ Postgame panic music removed
+ Wii U VC patch variants

+ Merges the content of all 3 versions into 1 definitive edition
+ Changes the font to match Starforce 2 and 3's
+ Event exclusive cards are now obtainable
+ Secret boss that ties into Starforce 2
+ Restores Lunar Knights crossover scenario
+ Improves sidequest system
+ All touch screen minigames can be done with buttons
+ Various other QoL improvements

+ Random encounters DRASTICALLY decreased
+ Alters Postgame requirements so that they don't require real brothers or online battles
+ Adds Master Shin and Classic Mega Man event only brother bands (making Tribe King usable via legitimate means)
+ Adds Battle Network sidequest without having to insert any of the games in the GBA slot
+ Event exclusive cards are now obtainable

+ Restores all of the JP voice lines
 - Not compatible with Not Quite DX

+ Completely undubs all recorded voice lines

+play as Roll in Mega Man 1
+two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Mega Man 2
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Mega Man 3
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Mega Man 3 Improvement
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Mega Man 4
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Mega Man 5
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Mega Man 6
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Rockman World/Mega Man Game Boy
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Rockman World 2/Mega Man II Game Boy
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Rockman World 3/Mega Man III Game Boy
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Rockman World 4/Mega Man IV Game Boy
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Rockman World 5/Mega Man V Game Boy
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Mega Man for Game Gear
+ Two patches included to choose between Classic dress and MM8 dress

+ Play as Roll in Rockman 7 FC
+ Each weapon has her change into one of her outfits from Powered Up. Very cute!

+ Play as Proto Man in MM1

+ Play as Proto Man in MM2
+ Alters graphics and Items 1-3 to match Proto Man

+ Play as Proto Man in MM3
- Unfortunately doesn't change it so that you fight Mega Man instead

+ Play as Proto Man in MM6

+play as Proto Man in X1

+ Play as Proto Man in X2

+ Play as Proto Man in X3

+ Play as Bass in Mega Man 7

+ Play as Zero in X1

+ Play as Zero in X2