Mortal Kombat cover art

Mortal Kombat Cheats

Mega Drive / Genesis

The original Genesis/Mega Drive Blood Code, with the story-screen input, controller mapping advice and content warnings. Source-checked against GameFAQs; not tested in-game by Retro Vault.

Mortal Kombat secrets cheats

VerifiedSecrets

Blood Code

Activates the source-listed Blood Code.

A, B, A, C, A, B, B

At the story line screen in the original Genesis/Mega Drive game, press each button separately in this exact order. Do not substitute the title screen or a different console version.

Graphic combat content. Source-checked 1 November 2026, not tested in-game by Retro Vault; not claimed for SNES, Game Gear or Master System.

Source

How to activate cheats on Mega Drive / Genesis

  1. Load your game and make a separate save first.
  2. Check each cheat's instructions — some are entered during gameplay, others on a menu or title screen.
  3. Enter the button sequence or code exactly; timing matters for pad-based cheats.
  4. Most games confirm with a message or sound when a cheat works.

Some cheats can disable saving or break progress. Never save over your main file with cheats active unless you're sure it's safe.

A Genesis-era guide, with the edges clearly marked

The first Mortal Kombat on Sega Genesis and Mega Drive is a compact, confrontational fighting game built around a small roster, a handful of arenas, and unusually theatrical presentation. Its appeal is easy to describe: readable fighters, dramatic finishing moments, and the promise of a hidden setting that changes the tone of a match. The practical challenge is separating what can be responsibly confirmed from what has accumulated in decades of cheat lists. This guide keeps that boundary visible. It discusses the Genesis/Mega Drive release, explains one source-checked code, and avoids inventing fatality inputs, secret menus, or benefits that the evidence does not support.

The one cheat included here is listed by GameFAQs for the Genesis version: the Blood Code, entered at the story line screen as A, B, A, C, A, B, B. The sequence is written in order, not as a chord. The listing is the basis for the instruction; this is not a claim that the author personally tested the code on original hardware. The source was checked 1 November 2026. That distinction matters for a retro guide: a documented instruction is useful, but a source citation is not the same thing as a fresh test across every cartridge, region, controller, and display setup.

Know which version you are playing

Before entering any code, confirm the game is the original Genesis or Mega Drive release. Mortal Kombat appeared on several platforms, and a familiar title does not guarantee identical menus, timings, censorship, controls, or cheat behavior. The Super Nintendo, Game Gear, and Master System versions are not interchangeable with the Genesis/Mega Drive version for purposes of this guide. Do not assume that an instruction documented for one edition transfers to another just because the same characters and arenas appear.

Regional packaging and hardware can also make identification less obvious. A Mega Drive cartridge is the regional counterpart to a Genesis release, but a compilation, later port, emulated reissue, or another console's cartridge may have its own behavior. Check the title screen, platform information, and the release you actually launched. If the screen layout or button labels differ, pause before trying the code rather than translating it by guesswork. This guide makes no promise about later collections or unofficial modifications.

Title screen is not the story line screen

The code is specifically associated with the story line screen, not the title screen. Look for the introductory story text during the opening presentation. The cited cheat listing names that screen but does not give a complete navigation path, so this guide does not prescribe pressing Start to reach it or claim it is part of single-player progression. If you see only the logo, a fighter selection or an active match, stop and return to the ordinary opening presentation before trying again. Do not enter the sequence merely because the game is waiting for a button press; the screen location is part of the documented instruction.

This distinction is the most useful first troubleshooting check. If you try the code at the title screen, a lack of response does not show that the listed sequence is wrong. It may simply mean the game is not at the documented screen. Likewise, do not substitute a character-select screen, versus display, pause menu, or post-match screen. The source names one location. Keeping to that location avoids turning a simple instruction into a string of uncertain timing experiments.

The documented Blood Code input

At the story line screen, press the following buttons one at a time in this order: A, B, A, C, A, B, B. Think of it as seven distinct button presses. It is not A+B, not a simultaneous three-button chord, and not a directional combination. The exact sequence is short enough to read aloud while entering it: A; B; A; C; A; B; B. Use the Genesis/Mega Drive controller's labeled face buttons.

GameFAQs identifies this as the Blood Code for the Genesis game. The guide does not add a supposed confirmation message, a secret menu, or a particular follow-up command, because those details are not part of the verified claim being presented here. If the screen appears unchanged, do not infer that another code or fatality command is required. First recheck the game version, the screen, the button labels, and the order. The documented input is the extent of the instruction in this guide.

Three face buttons, not a modern layout

The original Genesis controller presents three primary face buttons labeled A, B, and C. The Blood Code uses those labels directly. On an original controller, press the physical button whose printed letter matches the next letter in the sequence. The code does not call for Start, a direction, or a simultaneous combination. Avoid translating the letters based on where buttons happen to sit on a modern pad; button position and assigned function can differ between controllers and software.

For a modern controller or emulator, consult its input settings and identify which assigned controls correspond to the game's A, B, and C. Make a private note before starting: for example, write down the current mapping rather than relying on muscle memory. Then enter one mapped game button per press. If the setup uses a six-button pad, extra face buttons do not change the labels named by the code. The goal is to send the game's A, B, and C inputs in order, not to press whichever buttons feel like the original arrangement.

A careful, low-friction attempt

A sensible attempt begins with a clean view of the screen and a controller you can operate consistently. Start the game normally, proceed until the story line screen appears, and pause long enough to verify that this is the narrative screen rather than the opening title. Read the sequence once before entering it. Press A, release it, press B, release it, and continue in the same deliberate manner through A, C, A, B, B. The source supplies an ordered list; treating each letter as its own press is the least ambiguous way to follow it.

There is no need to mash, hold several buttons, or add directions. If the game moves on while you are still reading, restart the normal progression and wait for the appropriate screen again. If you are using an emulator, avoid changing speed or input settings midway through the attempt. That keeps the test understandable: one version, one screen, one mapping, one sequence. This is practical advice for reducing input mistakes, not a claim about a special timing window or a guaranteed on-screen acknowledgment.

Troubleshooting without inventing extra steps

If nothing seems to happen, check the likely sources of mismatch in a straightforward order. First confirm the platform and release: this instruction is for Genesis/Mega Drive, not SNES, Game Gear, or Master System. Next confirm the screen: it must be the story line screen, not the title screen or another menu. Then check that the input order was A, B, A, C, A, B, B, with each button pressed separately. Finally, verify that a controller remap has not swapped or omitted one of the game's three inputs.

If all of those points look correct and the result is still unclear, consult the original listing and the documentation for the specific hardware or emulator you are using. Do not compensate by adding random button holds, directions, repeated inputs, or alleged menu steps from an unrelated port. Keep notes about the version and setup if you want to compare results later. This guide is source-checked, not game-tested, so it cannot resolve every cartridge, regional, controller, or emulation edge case. A measured recheck is more useful than turning uncertainty into a confident but unsupported extra instruction.

Content note: the Blood Code changes presentation

The name signals the code's association with the game's blood presentation. Mortal Kombat is known for explicit combat imagery, and this setting may make that material more pronounced. Consider the audience and your own comfort before using it, especially if the game is being played around children or people who would prefer not to see graphic content. If that presentation is unwelcome, simply leave the code alone; the guide does not frame it as a requirement for enjoying the fights.

No claim is made here that blood improves a fighter's strength, changes damage, grants access to a roster, or unlocks a modern reward. Those are separate assertions and are not established by the cited cheat listing. The safe description is limited: GameFAQs lists a Genesis Blood Code and gives the sequence and screen location. Treat the setting as a presentation-related cheat, not as evidence of hidden competitive advantages or additional content.

Fatalities and other rumors are outside this guide

This is not a fatality-command reference. No finishing-move inputs are supplied, reconstructed, or implied by the Blood Code. Fatality instructions are especially easy to muddle across characters, versions, distances, and control schemes, so a remembered sequence from another release is not a reliable substitute for a version-specific source. Likewise, this guide does not describe a separate cheat menu or claim that the code must be activated through one. The available source claim is narrower and should stay narrow.

That restraint is useful rather than incomplete. A retro guide can distinguish an instruction with a named source from rumor without treating every old forum post as established fact. If you are researching another code, look for a source that identifies the platform and screen, and check whether it documents the exact command rather than merely repeating a familiar phrase. For this entry, the source-checked information is enough to make one careful attempt and understand why a mismatched screen or controller could lead to confusion.

Reference and verification note

Source checked 1 November 2026: GameFAQs, “Mortal Kombat Cheats” for the Genesis release, https://gamefaqs.gamespot.com/genesis/563332-mortal-kombat/cheats. The listing is the source for the Blood Code and its stated input at the story line screen: A, B, A, C, A, B, B. This editorial guide does not reproduce source prose; it restates the short button sequence and adds original platform, screen, controller, and troubleshooting context.

Verification status: source-checked, not game-tested. The code is presented only for the original Genesis/Mega Drive version, with no assurance that it applies to SNES, Game Gear, Master System, later collections, modified releases, or every emulation setup. The central practical reminder is simple: be on the story line screen, use the game's A/B/C inputs, and press the seven buttons separately in the listed order.

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FAQ

How do I enter cheats in Mortal Kombat?

At the story line screen in the original Genesis/Mega Drive game, press each button separately in this exact order. Do not substitute the title screen or a different console version.

Do cheats affect saving or trophies in Mortal Kombat?

Some games disable saving, achievements or progress while cheats are active. Keep a separate save file before experimenting — any known risks are listed on each cheat.

Are these cheats verified?

1 cheat is verified against a cited source. Entries marked Demo are placeholders and contain no code.

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