Before the internet made every walkthrough and hidden secret instantly accessible, gamers had to rely on a sacred, arcane oral tradition: the cheat code. These strings of buttons and words weren’t just shortcuts; they were badges of honor, scribbled on sticky notes, memorized in elementary school hallways, and whispered between friends like state secrets. In an era where game designers hid secrets behind bizarre button combinations, these eight codes became legendary, ingrained into our muscle memory forever.

 


Konami code: ↑ ↑ ↓ ↓ ← → ← → B A Start

If there is a universal language of gaming, this is it. Originally created for the NES version of Gradius, the code was popularized by the game Contra; this sequence granted you 30 lives in a game that was notoriously designed to kill you every six seconds. It was the ultimate “okay, I give up, please just let me finish this level” button. It became so iconic that Konami started putting it in almost everything they released afterward, turning a simple cheat into a pop-culture touchstone.

 


Doom: IDKFA

In the 90s, Doom wasn’t just a game; it was a revolution that brought the FPS genre into our living rooms. But sometimes, you didn’t want to hunt for red keys or manage your ammo stash. Typing “IDKFA” in the middle of a frantic firefight was pure liberation. It instantly granted you every weapon in the game, all the ammo you could carry, and every keycard needed to unlock the level. It turned the game from a survival-horror crawl into a power fantasy.

 


Age of Empires II: howdoyouturnthison

There’s nothing quite as jarring as medieval knights in chainmail armor being mowed down by… a Shelby Cobra. This cheat code in Age of Empires II was the ultimate absurdity. It spawned a modern sports car that was basically a tank on wheels, firing bullets and running over villagers. It served no strategic purpose other than being hilarious, and it remains one of the most delightful “what were they thinking?” moments in RTS history.

 


Mortal Kombat (Sega Genesis): ABACABB

In the early 90s, the battle for console supremacy was fierce, and Nintendo’s version of Mortal Kombat lacked the “blood” that made the arcade version so visceral. Sega players, however, had the edge. Entering “ABACABB” at the code screen unlocked the uncensored, red-pixel gore that the arcade purists demanded. It was the ultimate “take that” to the competition, proving that the Genesis was the cooler, grittier console.

 


Metroid: JUSTIN BAILEY

This wasn’t just a cheat; it was a legend. In the original Metroid, entering “JUSTIN BAILEY” didn’t just give you full upgrades and a bunch of missiles; it stripped Samus Aran of her bulky Varia Suit, revealing the iconic “leotard” outfit underneath. For 1986, this was groundbreaking stuff. It felt like hacking the game itself, a strange, mysterious, and highly specific code that everyone claimed they found on their own, but definitely got from a friend’s older brother.

 


Sim City 2000: imacheat

Managing a city is hard. Dealing with budget deficits, sewage pollution, and the occasional UFO attack can make you want to throw your mouse through the monitor. Sim City 2000 understood our collective burnout and offered “imacheat.” It was the ultimate bailout, dumping $500,000 into your treasury and letting you play god without worrying about the looming threat of fiscal insolvency. It was the fiscal policy equivalent of hitting the “easy” button.

 


Half Life: sv_cheats 1

While the others on this list are specific, “sv_cheats 1” was the gateway to true chaos. Typing this into the console for Half-Life (and nearly every Source engine game since) unlocked the ability to use “god mode,” “noclip” (the ability to fly through walls), and a variety of weapon commands. It transformed the game into a playground, allowing you to explore the maps from the outside, experiment with the physics engine, and essentially break the game in the most creative ways possible.

 


Starcraft: show me the money

If you played Starcraft in the late 90s, your keyboard likely still remembers this phrase. Minerals and Vespene gas were the lifeblood of your base, and managing them was the most stressful part of the game. “Show me the money” bypassed the economic management entirely, instantly granting you 10,000 of each resource. It was the fastest way to turn a desperate, losing battle into a massive, unstoppable swarm of Protoss Carriers.