There was a time when the secrets of video games came in arcade machines, magazines, and conversations from someone who swore they had seen something impossible. Around the first ‘Mortal Kombat‘, that something impossible had the shape of a red ninja and a strange name: Ermac. The game had already shown that it could hide characters, so many players continued to look at the screen with the suspicion that there was another fighter there waiting to be found.
The clue that fueled that search was not born as a character, but as a technical entry within the game itself. Ed Boon, co-creator of ‘Mortal Kombat’, explained that during the development of the first game, the software had sections of code that, in theory, it should never reach. If that happened, the system incremented an error counter that the team could review on an internal audit screen. To shorten that record, Boon wrote an assembly macro called ERMAC, short for Error Macro.
A rumor too good not to end up being true
The detail that changed everything was where that counter appeared. Boon explained that the ERMACS number was listed right after the record of times the players had fought Reptile, who was a hidden character in the first ‘Mortal Kombat’. The association was almost inevitable: if Reptile existed and was counted there, Ermac could seem like another secret of the same type. For a player looking at that screen without knowing the code behind it, the name didn’t sound like an internal tool, but like someone.
From there, the gap was filled by the collective imagination. Boon summed it up quite clearly long ago in X: rumors about Ermac became legend and some players insisted that they had actually faced him. The important precision is right after, because the co-creator of ‘Mortal Kombat’ cut the story with a short sentence: “They didn’t do it :)”. There was no hidden red ninja in the first game, but rather a misreading that had found the perfect ecosystem to grow.
Ermac in ‘Ultimate Mortal Kombat 3’
The most revealing part is not only in the code, but in the trace left by the conversation. The alleged clue linked to Electronic Gaming Monthly dates back to 1993, and the rumor continued to appear on forums long afterward: Mortal Kombat Online discussed it in threads from 2003 and later.
Boon recalled that in ‘Mortal Kombat II’ Reptile stopped being just a hidden fighter and became part of the playable roster, while the game added three other secret characters: Smoke, Jade and Noob Saibot. It was a clear sign that ‘Mortal Kombat’ was still playing with the idea of the hidden, even if Ermac wasn’t there yet. For some players, that was enough to keep the search open a little longer.
Ermac in ‘Ultimate Mortal Kombat 3’
The twist came in 1995, when ‘Ultimate Mortal Kombat 3’ finally turned Ermac into a real fighter. Boon explained it as part of a broader decision: for ‘Mortal Kombat 3’ they began to transform some myths into elements of the game, starting with the Animalities, the animal endings of the saga, and in ‘Ultimate Mortal Kombat 3’, the expanded version of 1995, they ended up adding Ermac to the roster. The character that many had searched for ahead of time now appeared as the red ninja that the community had already imagined, but with an important difference: this time he did exist.
Ermac and ‘Mortal Kombat 1’
From there, Ermac stopped depending on rumor and began to have a life of his own within the saga. Boon recalled that, over the years, the character appeared in several ‘Mortal Kombat’ games and ended up accumulating history, background and a place within the lore. This evolution does not erase its origin, rather it makes it more peculiar: first it was an internal abbreviation, then an interpretation of the players and finally a fighter with an identity. Few characters summarize the relationship between error, community and canon so well.
The last turn of the story came with ‘Mortal Kombat 1’, the installment developed by NetherRealm Studios and published by Warner Bros. Games in September 2023 as a reboot of the saga. Boon brought back Ermac’s origin at the time because the character was about to arrive in the game’s roster as downloadable content. It also served as the perfect context to present a fighter who had started as an error counter and continued to function, decades later, as a claimant.
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