Posts

Newest Post: An Uncertain Future

Good evening, my readers. As some of you have already noticed, I am working on a personal project I had created several years ago lately, a space where my original creations would be featured. However, as my old self being was unable to deal with the workload and expectations back then, small progress was made before being put side and focusing on the engine instead. I certainly wonder why I did not give this project the attention it deserved, but well, time is irreversible, so I will have to work with the  bare-bones I had left... At present, I got heavily motivated and finally resumed my project after months of reworking the core parts, so this is going to be the main entry where the latest information will be posted. The main plot will not be the big deal, of course, but I will try making it different from the usual. The project has been divided into parts in order to fasten the release process, as I would be stuck in it for longer otherwise, so relevant content will be shown wh...
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VoidShell Library: Destiny Notes

Good afternoon, readers. Oh yeah, this is going to be the first blog entry of 2026, so let us begin by talking about the VoidShell library's future. As many of you can guess, this library initially started as an ASM x86 program inside a ST file, which was loaded by the engine through a SuperNull exploit (The StateDef Overflow engine vulnerability was used as main vector back then), and despite you could expect, it was simpler than the current version. "Eikidankai" was the first name given to said library and early build versions were used on a few known characters (such as x00x00x or Void.Schmelze) to withstand most SuperNull enemies from the past decade. However, there was no real defense behind it, as it just seals most of the engine vulnerabilities while hooking some primary functions, causing their exploits to be effectively blocked but also rendering them unstable. They were eventually left as PoC characters while the Eikidankai program had to be reworked from scrat...
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M.U.G.E.N Engine - VoidShell Library

Hello my fellow readers! Well, before starting to talk about VoidShell, I will try refreshing your memory... Does the word "Eikidankai" remind you of something? This portrait will definitively make you remember it then: Said word has been reserved for my personal projects from now on. Characters who  previously  used it were already given a new name, and  VoidShell  has come to replace t he namesake module , so let us get started! What is even VoidShell? It is a  general-purpose library for M.U.G.E.N Engine that allows  Void characters to  protect their main PlayerCache data while providing them a simple but vast toolkit  interface to use in said engine. Characters loaded through this library will have their primary data remotely  protected besides providing basic contingency plans against certain enemies. They are also granted the capability of remotely tampering with the enemy to weaken them further, called as "Player Arts", which can be a...
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Personal Restructuring

Good evening, my readers. As some of you have probably noticed, I have not made any new content during these weeks, so let us start talking about only a few primary subjects... Due to some personal affairs I have been dealing with for some years, I will start  prioritizing the latter before it gets too late, which is going to cause the progress of some general stuff I have been working to be greatly slowed (except Eikidankai Project). If everything goes according to the plan, I may resume them before calmly releasing to the public besides providing new information about my personal project, so stay tuned for future updates. Already ongoing works will eventually be released, but additional time may be required to complete them. Well, this is all for now, so have a nice day. Oh yeah, this site could have another theme remodelation, so let us see how things go.
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Eikidankai Project: Website Announcement

Hello my fellow readers. While working on some SuperNull exploit add-ons for M.U.G.E.N Engine, I finally decided to focus on a personal project I have been working for several years, but never gave it a higher priority as the former, so here we go: This is my main page where my creations will be featured, including characters, of course. It is still in a beta stage, but decent enough to be shown to the public. New content will be posted in said page as time is on my side, so feel free to leave any feedback in this blog entry. This is all for today, so have a nice day!
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WinMUGEN: NomiShell - SuperNull Code Multi-Loader

Good evening, readers.  This is a SuperNull exploit code loader, created by me for the author Nomi , that allows you to execute your character's code multiple times, besides providing a small toolkit to make code creation easier to do. This exploit template uses all the known engine vulnerabilities to execute code, which also allows to circumvent SuperNull characters who usually seal one of them, so you will not have to worry about your main code being blocked. Baka.AI, a character created by Nomi, uses the first version of NomiShell to load her main library. Current Version: V2.02s (> Download Here <) After downloading this exploit template, you will have to read the "ReadMe" text file to implement it in your character properly, before executing the NomiShell code loade r. You will no longer have to worry about everything but your code when using it, as due to the way this exploit has been created, all the stack and control flow order are handled by NomiShell. Well...

WinMUGEN: Seiobake.EX - ModifyScreen Handler Add-on

Good evening, readers.  Time flew so fast even another year is over, but well, this just implies a new beginning, so let us get started with the first blog entry of this year. I have created in collaboration with Nomi , a SuperNull add-on for WinMUGEN, called as ModifyScreen Handler, that allows you to perform angle and scale operations on the engine's screen, which can be useful to create some interesting visual concept on certain characters. These add-ons are a part of a special framework I am currently developing, called as Seiobake Library, which allows to implement new features into the engine. Current Version: V1.01s (> Download Here <) After downloading this engine add-on, you will have to read the "ReadMe" text file to implement it in your character properly, before executing the NomiShell code loader. This engine add-on uses a SuperNull multi-loader exploit to be loaded in the process's memory, which is also intended to circumvent most of Sealer type ch...

M.U.G.E.N 1.1b: EikiLoader.EX - Postman Reloader

Good evening, readers.  On this occassion, I have created a Reloader template from the EikiLoader.EX program for this engine version, that allows you to load a full version of your character while creating another instance of the process in a similar way to the Postman method. This exploit template uses the STBOF  vulnerability, which we have already talked about previously, to execute its shellcode. (> Download Here <) After downloading this exploit template, you will have to read the "ReadMe" text file to implement it in your character properly, before executing the Reloader shellcode.  You can use this to create your SuperNull/Reloader characters easily without the need of creating complex ROP chains to execute similar code. This is all for now. Have a nice day.

M.U.G.E.N 1.00: ST Filepath - Buffer Overflow Attack

Good evening, friends. It has been a while since I have not talked about engine vulnerabilities, but I think this is the right time to start talking about this new vulnerability. This research was born from Nomi 's ideas about trying to overflow the ST filepath line in WinMUGEN, which motivated me to investigate said insight in M.U.G.E.N 1.00; a nd as expected, it is possible to perform a buffer overflow attack from there by creating a very long filepath string that overwrites the character loader's buffer region including the return address, allowing us to execute our ROP chain. This exploit can be used on both M.U.G.E.N 1.00 and 1.1b, but the main downside is not default-processing reversible, which currently restricts its use to SuperNull:Reloader characters only. (> Full information about this engine vulnerability can be found here . <) Note: Due to nature of the ROP exploit technique, do not expect this exploit to work on all the computers, so beware of it. Well, tha...

Einherjar...

"Some things appear to be real, but how are you sure they actually exist?" Words provided by Einherjar. This is a SuperNull character, that is also a Proof-of-Concept, I have worked in collaboration with the author Nomi .  Einherjar uses the CTBOF engine vulnerability, which is not so used due to its ROP limitations, to load her shellcode in M.U.G.E.N 1.00.  Download link can be found either  here  or in Nomi's website. Caution: It may not work on some computers, due to the way the ROP technique works, so beware of that matter. It has been a very while since I have created a character like her, but well, this is all for now.
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M.U.G.E.N 1.00: Command Trigger - Buffer Overflow Attack

Good afternoon, friends. Hmm, I never thought I would be talking about this vulnerability again, but well, let us go straight to the point. As you can guess, this vulnerability also exists in M.U.G.E.N 1.00, but due to the NX Bit protection being active in the program, shellcodes cannot be directly executed, so it is required to use an exploit technique, known as Return-Oriented Programming , to circumvent said protection. I have recently made an exploit that takes advantage of such vulnerability, but as there are several pointer limitations to build a ROP chain that jumps the engine back to default processing, it is currently limited to SuperNull ~ Reloader characters. (> PoC can be downloaded here <) Note: As this exploit requires ROP chains to execute its shellcode, do not expect it to work on all the computers, so beware of it. Well, that is all for today, have a nice day.

M.U.G.E.N Cheap Wiki

  Do you want to know how an engine exploit works in detail? Do you want to know more details about a character you like? Do you want to add your research into some articles?  If that is the case, we have this page for you to check out:  All the articles about characters, authors, and exploits can be found in this Wikia page, so you can get an idea about how they work in detail! Main articles have already been covered, but new content is yet to be created.  
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Cookie Clicker - WinMUGEN Edition: Beta Build Repository

  Hello again. It has been weeks since I have been working on this Cookie Clicker game adaptation for this engine version, so as not to kill any possible "expectation", some beta builds will be released in this post. (> VB0.02: Download Here <) Make sure to read the ReadMe text file before use Warning: This game adaptation can only be run on the Hi-Low Res version and is not intended to work as a playable character, so do not expect it to fight other enemies, as unpredictable results could occur.  Despite being in W.I.P state, current beta build link might be changed for the latest one, so stay tuned for new posts.
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Cookie Clicker - WinMUGEN Edition: Development Log No. 1

Hello friends. It has been a while since I do not post new content in my blog, but for this ocassion, I will be posting some development logs about this game adapation for M.U.G.E.N Engine: Cookie Clicker As you can guess, incremental type games like this one are virtually impossible to adapt in a fighting engine like M.U.G.E.N without the help of exploits, as the latter allows me to enable mouse support besides implementing some code patches for optimization purposes. Due to engine limitations, I will have to integrate new game mechanics to compensate, so you can have a unique and different experience when playing this game adaption. It is currently in W.I.P state, but it will eventually be released to the public after fine-tuning the last details, so stay tuned for new posts. Have a nice day.
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¡Dictador a La Base! Release

Hello friends. On this  occasion, my newest Eikidankai character (EX version, to be exact) under the name of "¡Dictador a La Base!", will finally be released Aléjate de el Eso Brad, o si no, te lanzará una bomba que hará cagar... Click here to download this character Warning: It is highly advised to run this character on a computer you use for testing purposes only Your antivirus may detect the files as viruses, but  it is just a false positive, so do not worry about it To be honest...  I do not have anything else to say but have fun with this character~ That is all for now, stay tuned for new content. Have a nice day...
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