Smoke Choked

The Sonic from Sonic: Pocket Adventure
By ThatOneFellow

This is apparently a bootleg Pikachu plush, although I cannot find the bootleg that it is based on.  It acts similar to the Tails Doll.
By Makaibros

Arguably the worst Pikachu edit I have ever seen, and one of the worst edits I have ever seen.  This "female Pikachu" is based on Milachu, a Pokémon NSFW artist and a Pikachu OC, and does the source material no favors.  "She" is nothing but a broken edit of Gladiacloud and Solarflared's Pikachu, with bloated attack power, defense, and health.  There was a reason why people resorted to bashing this thing.  For collection purposes, only.
By Gladiacloud and Solarflared, edited by Vulpis Girline
 

Oh, how the hype for Jump Force was ultimately unwarranted...
By Mr.Giang + Warusaki3
 

Arr, SpongeBob, you're spending all me money!
Requires Psych Engine
By SomeThing111
 

A strange edit of Belphegor that gives her a color scheme and voice of a Mario Brother.  That's really it.
By Siguel

PIRACY IS NO SPEED
I guess this guy is another Sonic.exe variant?
Requires Psyche Engine to play
By Rockeythepock, Blook, Tox, KubiCorg, Ruby, Mimmchips and Iris
 

While this game is the sequel to the original Sonic.EXE game, it is/was by no means the official sequel to Sonic.EXE.  Sally.EXE was a separate Pasta, taking the female Sonic characters and putting them into the plot of "Sonic", another Creepypasta.
This game was a first for Sonic.EXE games, at least in terms of how it used your computer's username to break the Fourth wall.  However, unlike Sonic.EXE, this game was never updated beyond its initial release.
By MY5TCrimson
 

She's gonna step on you
By p0008874

Prior to the accusations and cancelling of the former Sonic.Exe mod director, Revie, this song was planned to star Sonic.Exe, Lord X, and EXE/Faker.  The upcoming 2.5 update to the mod, according to the most recent leaks, is going to replace EXE with Majin Sonic (as was planned before Revie became the director).  This is a fanmade mod for Psych Engine based on the original song by Ryzzon, Saster and Adam McHummus.
By SereBeat
 

A mod based on Case's mashup of Cycles and Endless
By SereBeat
 

Despite having his sprites from Rockman: Battle & Fighters, this Bass plays like a basic NES Mega Man.
By The_Virus_X es un NPC

The Tails from Sonic: Pocket Adventure, made using Scar's version of the MVC: EoH template.
By YochiThMaster333

A really great take on Classic Sonic, newly released by DS12!
 

A four-character tag team of Kyo, Ryu, Iori, and Ken from SNK vs. Capcom: Match of the Millennium.
By Sunboy

This version of Cream is the ultimate dank meme edit!  She is a professional when it comes to killing and is powered by Snoop Dogg's weed, so you know this kid is powerful.
By Gladiacloud (Dank Memes by XXMarioLover64BRXX)
 

Everybody's favorite superhero, the man who is faster than lightning, stronger than steel, smarter than a speeding bullet... it's Super Grover!
By Lasher, edited by DKCPlayer
 

One of, if not THE weirdest and most obscure edit I have ever seen.  It's a KFM spriteswap version of the author's own GIR that swings the Skull Hammer from Wind Waker and says "Got Milk?" whenever it does anything.  Download for collection purposes.
By SLK
 

Arguably one of the worst Among Us characters in M.U.G.E.N.  Apparently this thing was lost media at one point.
By Dirtboy Universe
 

The self-insert of TheIransonic.  He fights with a combination of Omega Tiger Woods's moveset and a bunch of his characters and Neo Sonic as assists.
By TheIransonic/jengra505/Placemario, 'AI' by Halis

Based on Leon S. Kennedy and Kyo Kusunagi.
By Ryo 2005 and GTAguy

"A guy created it simply as a middle finger to the MUGEN Database by giving it a multi-layered idle animation, since back then we ripped animations through Fighter Factory." - PlasmoidThunder
Cannot be killed through normal means and spams projectiles endlessly.
By GozioLog

Donaldeus's self-insert, based on Saisyu Kusanagi.  He uses plenty of Donaldeus's running gags, particularly from on Blood Idol Wakabayashi, as well as jarate, Sanic, and transforming from other characters.  A worthwhile self-insert.
By Donaldeus
 

Ghost Kick, but he's got the Flash's voice, travels at hypersonic speeds, has regeneration, and is cheap in general.
By Dick Buckus (Shitfucked by Lolikerz)

Fleetway Super Sonic is the version of Super Sonic from the British Sonic comic series, Sonic the Comic.  In Sonic the Comic, or STC for short, Super Sonic is activated when Sonic is under extreme stress or is enduring the overload of Chaos Energy, similar to how the Chaos Emeralds, Super Emeralds, Master Emerald, etc. does to Sonic, Tails, Knuckles, Shadow, Blaze, Silver, etc. in various other Sonic media.  Unlike in other media, where Super Sonic is merely a transformation of Sonic, Fleetway Super Sonic has no sense of morals and is a rampaging monster like the Incredible Hulk.  Like many other iterations of Super Sonic, Fleetway Super Sonic became a major character in Sonic the Comic, both as an out-of-control transformation of Sonic that evolves from a mindless beast to a fully sentient being, and as a separate entity that suffers from amnesia and becomes a good guy up until the end of the series.  Fleetway Super Sonic is one of the most popular characters in Sonic the Comic, spawning plenty of fan projects like the 2011 animation of the story arc, Running Wild, a few shorts in the Sonic Shorts series, and even becoming the true identity of Iblis in Sonic the Comic Online.
This version of Fleetway Super Sonic, contrary to the description above, is not at all based on the comics or the other fan projects.  Rather, he is a joke character that has Shadow's motorcycle, can use the Kokodesuka and Hadoukens, fire trash cans, and summon Mario and Luigi.  I don't even know why this character is like this, but it sure as hell is funny!
By that black guy that looks like shakeel oh kneelh (No, seriously, that's what the def file says.  The readme's name of the author is far worse.)