The Mugen universe is an endless field of possibilities for fighting game fans, where the community of independent developers can bring their favorite characters into the digital arena. In this creative scenario, “JUS” style characters stand out, inspired by the characteristic look of games like Jump Ultimate Stars. These characters, often in “chibi” (super deformed) format, make up popular screenpacks that house hundreds and even thousands of fighters . It is in this context that the work of creators such as Xkleitoss comes to the fore, presenting us with David Martinez V2, a pixel art representation of the protagonist of the acclaimed anime Cyberpunk: Edgerunners, ready to duel in his Mugen. This char promises to bring David’s intensity and unmistakable style to the ring, with all his iconic moves and the cyberpunk aesthetic that has marked his fans.
This article is the first in a series that will explore this and other characters in detail. Over the next few topics, we’ll cover everything from the step-by-step process of adding this char to your game, to an in-depth analysis of his special moves and fighting strategies. Stay with us and find out how to expand your Mugen roster with this high-octane fighter.

How to Download and Add Characters to Your MUGEN
The process for adding a new character like David Martinez V2 is generally standard for most MUGEN builds. The video detailing “Mugen Ax2 – ANIME JUS EDITION” offers a clear example of how this works in practice .
Usually, the creator (in this case, Xkleitoss) makes the character available in a compressed file. The installation process is usually as follows:
- Download the file: Download the character file, which will probably be in .rar or .zip format.
- Folderlocation: Find the main folder of your MUGEN game. Inside it, locate the folder called
chars(or “characters”). - Copying the Character: Extract and copy the character folder (in this case, the “David Martinez V2” folder) into the
charsfolder. - Selector configuration (Optional): To make the character appear in the character selector, you may need to edit the MUGEN configuration file
(select.defor similar) and add the exact name of the character’s folder on a new line. Many modern builds, such as the AX2 mentioned, do this automatically .
It is highly recommended that, when downloading the character, you check that the file includes a “README” or “READAME”. This text file will contain the specific instructions and any requirements the creator has for the character to work perfectly.

Why Does David Martinez Become a Popular Character on MUGEN?
David Martinez’s presence in MUGEN projects is a direct reflection of the huge impact that the Cyberpunk: Edgerunners anime has had on pop culture and especially on the Cyberpunk 2077 community .
The character’s fans aren’t satisfied with just watching his story; they want to relive it and control his destiny. This demand manifests itself in two main ways:
- Inside Cyberpunk 2077 itself: Players create and share meticulous builds to transform the protagonist V into a playable replica of David Martinez. These builds focus on using the Militech “Apogee” Sandevistan (the implant that accelerates time perception), Gorilla Arms (cybernetic arms for hand-to-hand combat) and weapons such as the M-10AF Lexington and DB-2 Satara, all faithful to what was seen in the anime .
- In the MUGEN Universe: The community of creators, such as Xkleitoss, takes immersion one step further. They translate the essence of the character – his superhuman agility, his signature moves and his cyberpunk aesthetic – into the language of 2D fighting games. The “JUS” (chibi/super deformed) style adds an extra layer of appeal, inserting a character from a dark universe into a more relaxed fighting context full of other anime characters.
The “David Martinez V2” char for MUGEN is more than just a fighter; it’s a fan-made homage, allowing other players to take the iconic Edgerunner into battles he could never have imagined in the Cyberpunk universe.
David Martinez’s popularity on MUGEN can be understood as a cultural phenomenon that transcends the simple addition of a character to a fighting game. The emotional trauma left by Cyberpunk: Edgerunners has created a need among fans to rewrite the character’s fate, and MUGEN has emerged as the perfect stage for these alternative narratives. While in the original Cyberpunk 2077 universe the player can wear David’s jacket as a posthumous tribute, in MUGEN he takes on a life of his own, challenging opponents from other universes in battles that were never possible in the official canon.
This reframing of the character is amplified by his unique fighting style. The essence of Sandevistan, which in the anime is portrayed as almost unbeatable temporal acceleration, is creatively translated by MUGEN’s developers into special moves with invincibility frames, rapid attacks in sequence and visual effects that simulate time distortion. The technical implementation of these abilities allows experienced players to recreate the feeling of power that David experienced on his journey, even if only temporarily, before the physical and mental costs of the cybernetic implants.
The context of the MUGEN community also plays a crucial role in this popularity. In an ecosystem where crossovers between disparate franchises are the norm, the insertion of a Cyberpunk character into a JUS-style screenpack full of chibi characters from shonen anime creates a deliberate contrast that captivates players. The super-deformed aesthetic softens the visceral violence of David’s universe of origin, transforming him into a more playful figure suitable for the nonchalant combat that characterizes many MUGEN builds.

It’s worth noting that the work of dedicated creators like Xkleitoss takes the quality of the character’s representation to a professional level. By developing not only well-designed sprites, but also a movelist consistent with the character’s personality and abilities, these artists ensure that David Martinez is not just an imported model, but a functional and balanced fighter within the game’s mechanics. This attention to detail respects both the original source and the community that will be using it.
The timing of the anime’s release was also a determining factor. The vacuum of new content about the character after the emotional impact of the series finale led fans to actively seek new ways of interacting with that universe. MUGEN projects, mods for Cyberpunk 2077 and other community creations emerged as creative escape valves, sustaining interest in the character well beyond the traditional life cycle of the animated series.
The accessible and collaborative nature of MUGEN allows the version of David Martinez created by a fan to be subsequently improved, modified or recombined by other members of the community. A character can receive balancing updates, new moves or even variations based on different phases of his history, such as a pre-Sandevistan version or a completely cybernetized form. This organic evolution keeps the character relevant and in constant dialogue with the players, solidifying its position as a valuable addition to MUGEN’s vast roster.