Smoke Choked

This is a boss character based on the Giant Walrus from the Season 1 Pingu episode, Pingu's Dream.  This boss is infamous for, for most A.I. and players, being nigh-unbeatable.  Face it at your own risk.
By Kouzyoutyou2621
 

Claimed to be a character from Ragnarok Online, but it's really just a balloon Kirby from the Archive.  It's kinda weird.
By The Doctor, AI by BigCrunch22

All of the characters currently in MUGENMarioWorld, all by xXPGlitz236
Normal characters:
Mario
Luigi
Wario
Waluigi
Toad
Toadette
Boss characters:
Bowser
Special/Guest characters:
Mama Luigi
SMW TV Mario
 
Note(s)
.Defs
The 1.0 def also works for 1.1 (Not modded such as the (In) famous k.y shanxi's SSB Mod)
Do not use the later defs in winmugen. Due to how some pieces of the code is not meant for winmugen. Otherwise it will crash. Use the winmugen def file.
They also come with a readme file (albeit: wordpad): in order to know their specials and supers/hypers.
AI
In order to adjust the ai: Theres 4 options inside their statedef -2.
Main: WinMugen Users has to do that manually.
(1.0 and 1.1 users can either ignore that since it uses the built in options menu for ai difficulty and/or simply modifiy a bit of the AI for something like)
Basic: Often aimed for the simple punching and kicking
Special: Fireball, Uppercut .etc
Super: Super Fireball, .etc
Example: You could have a efficient Usage on Supers. But doesn't combo much
or simply. Wombo Combo and use supers and specials often.
 

Barack Obama, based on Minebama's Rivals of Aether release.
By Gokurus
 

E.T. the Extra Terrestrial, the famed film directed by Stephen Spielberg, based on his infamous Atari adaptation.  There's a reason why this game is buried in landfills.
Unlike Basara-kun's E.T., this E.T. can actually fight, using the light and medium punch buttons, but there's not that much differences between them outside of that.
By Notodon

The Voodoo god of death, the Man who can never die, Baron Samedi
Quoted from Fighters Guild post
By Cpn Crossfader, 'improved' by Halis 4Head

Quoted from the Free For All post
By Warner, edited by Tweenies_1998

Quoted from the Free For All post
By Warner, aperson98, BobaFett, Tweenies_1998

King Fancy Man, but he's ramped up a bit in craziness, and his palettes are mixed up
By Dark_Feather,Updated By Metaljack333
A proper comparison between this and the original King Fancy Man
 

Modified from JudgeSpear's Peter
Quoted from the readme:
Also contains Peter's evil twin, Retep, as an alternate set of defs
By xXPGlitz236Xx Originals:Warner/JudgeSpear

A rather kinky-looking Super Saiyan.  Done in the 16-bit style, and seems to be cheap.
By ýˆÉÙ

Perhaps one of the most detailed stages I have ever seen.  The first Vaporwave stage ever made for M.U.G.E.N., it seems.  This file is password protected.  You need to open it with a rar opener like WinRar or 7Zip, and then enter the following password: keubenreelives
I highly recommend this stage for anyone, although it is a very hefty file, which may make it difficult to load, and it only works for 1.1.  Even if you can't load it, there are some nifty pieces of bonus material, in the form of images you could use for computer wallpapers and such.
By Negative-D & ????
 

The protagonist of Azure Striker Gunvolt, being another conversion from his depiction in Blade Strangers.
By Perroris
 

By HOTTOMOTTO
2nd file: AI Patch by Nanashi
Quote from White Ranger on Mugen Free For All
 

Based on the Phút Hon (KAIZ REMIX) TikTok memes, and various sexualized waifus.
Rated 18+ due to the selected custom portraits of the packaged characters.
Comes with:
Yagwick by C
Purgatory C by DRH
Schlussel-Pre by Precious_QingQing
ThunderMiss.Shermie by Ahuron, arranged by humi and migo
Kyo Amnesia by David Demianoff¡¢antinomies
Will require a separate 4 GB patch, if the provided 4 GB patch does not work.
By Yagevil Yagwick Heimrig
 

Ruby and Yang originally by OHMSBY, Weiss and Blake originally by k6666orochi
The following edits were made:
By Mushypepito123
 

A high quality sprited Hong Meiling, using Guilty Gear gameplay.
By furikake
2nd file: A.I. patch by Etoile

A Hispanic, Flipnote-animated version of Mario.  A very interesting version of Mario, using volleyballs, small F.L.U.D.D. sprays, a flaming stick, and more as attacks.
By Michael J
2nd file: A.I. patch by Lillie's MADs
Quote from Lillie's MADs:
 

Another Vaporwave or Aesthetic stage
By Duduleonel

A not as well known stage by Andres Borghi

A 3D remake of EX Falchion's Ugandan Knuckles!  Complete with smooth 3D animations and plenty of new attacks!
By MarioCraft31
 

A nuke level cheapie, invincible by default, and instakills regular opponents immediately
Only killable by characters that surpass invincibility
By Ultimatetus
 

A very strange girl with a hammer and a bunch of assists
By 樽戦＆マンドラフ
 

A very cheap and super flashy edit of Sonic the Hedgehog!  This one in particular most notably has transforms, from Super Sonic, to an enhanced Super Sonic, to Hyper Sonic, to an enhanced Hyper Sonic.
By The_Lancer
 

An insane, overpowered version of the Flame Craft boss from Sonic the Hedgehog 3
This boss uses a unique healthbar at the bottom of the screen, which does not correspond with the default M.U.G.E.N. healthbar.
By LJH