Asklemmy

TGRTVN

Final level in Bubsy.

God mode in Duke Nukem 3D, "dncornholio". Come get some...

DULLARD for cheat mode on SNES and I think Genesis Mortal Kombat.

weaknesspays

(extra money in SimCity 4)

Down up left left A right down to get the cheat menu on Mortal Kombat on the Sega Megadrive.

On Revenge of Shinobi set the number of shurikens on the Options screen to 0 and wait 20 seconds. The zero turned into an infinity symbol, giving you unlimited shurikens.

Mk3 for super Nintendo

Kool stuff - Up up down down left right a b a

Kooler stuff - Select b a right left down down up up

Scott's stuff - X b a y up left down right down

Up, down, left, right, A & start at the same time. I still sing the jingle when sonic 1 starts

Black sheep wall - StarCraft map reveal

Racecar

How do you turn this thing on

Starcraft (original): black sheep wall

Reveals the whole map by removing fog of war.

How do you turn this on (Age of)

Fly and ghost (Unreal 1 : to observe every minute details of the map))

Descent. Gabba Gabba Hey

ROBINWOOD (I think) in AoE II

ABBAABBA. Skip level code for Aladdin on the Sega Genesis.

Edit: and the Zelda name cheat for NES!

DNCASHMAN to make it rain money in Duke Nukem 3D

Call Cousin Vinnie

It gave you a boatload of money in SC3K

FROTZ

The one from the sims I it was “katching” one and the other was “motherlode” maybe the spelling is not correct but I will never forget those codes.

Original Mortal Kombat blood code:

ABACABB

HESOYAM

GTA:SA extra health and money.

xyzzy

genie jafar aladdin abu

Fuck that lava level.

Porkcharsui in the original pc version of Grand Theft Auto. If you named your character this, you had an overlay with coordinates so you could find your way easier, you'd get all the guns and the possibility to toggle a kind of sped up mode.

Oh and howdoiturnthison in Age of Empires 2 to get an AC Cobra with machine guns

Power overwhelming ... Glittering treasures.

Warcraft 2

JUSTINBAILEY

Play without the power suit in OG Metroid

Surprised nobody mentioned "motherlode".

Something like 50k simoleons in The Sims 2. Absolutely essential to any save file.

furious the monkey boy

Warcraft III: iseedeadpeople to remove fog of war.

Ratchet and clank 3, the cheat code is told to you in a cutscene:

"Aren't you going to unlock his secret costumes? Here, I'll put in a cheat code. Up up down down left right circle square square... Haha! Look! He's in a tutu!"

As others have already mentioned, IDKFA for Doom and didn't it work in Doom 2 as well?

I only ask because when ID Software released Heretic, a swords and sorcery style Doom game, I remember typing in IDKFA, expecting the same results. It was the Doom engine after all. Except typing in the classic code kills you instantly!

Another isn't strictly a cheat code. On the old 8bit computers the UK, you could enter some programming code to change the memory before loading in a game. (This is over simplified.)

Because of the altered memory, it would effect the game in some way. E.g. infinity health or lives.

I found a listing in a magazine which you could type in to help with the ZX Spectrum version of Batman: The Movie.

In this platform game, with the cheat, when a bad guy tried to climb a ladder, they would freeze.

This was very helpful and worked wonderfully all the way through the game. That was until you reached the very end whereupon the Joker was on a rope ladder attached to a helicopter.

The code interfered with the end of game boss in a way it wasn't expecting and the game would crash.

Thanks.

Shift+Control+B (in the Polish version), then klapaucius/rosebud from The Sims and you could do rosebud;!;!;!;!;!;!;!;, it would error out because of the trailing semicolon, but still add money to your account, so you just held down Enter until you were satisfied with the amount of cash in your account