Cheat codes you remember

[LogicNProportion]

SOOOOOOOOO MANYYYYYYYYYY!

One that came to mind first if for Star Wars Bounty Hunter for PS2:

JANGOISBADDEST - Unlock everything.

 

[OliverTwist72]

porntipsgizzardo don't ask me why I remember this but I do, its a money cheat for Sim City

 

[DBHGamer]

dndkroz - in Duke Nukem 3D.
itisagooddaytodie - in Warcraft 2.
32167 - in Heroes of Might and Magic 2.
Oh, and of course the konami code.

Boy, do I feel old.

 

[DBHGamer]

dndkroz - in Duke Nukem 3D.

Oh, my bad. dnkroz, not dndkroz. Sure I felt old, now I'm worried I might have altzheimers.

 

[Sprinal]

there is no cow level

power overewhelming

show me the money

Hmmmm... Well I was playing starcraft when I was 3 so....

 

[Canadamus Prime]

Well let's see, I remember that the code to access the level select on the NES version of TMNT II: The Acrade Game went: a, b, a, b, up, down, a, b, right, left, a, b, start

Also not really a cheat code, but the password to the final floor in The Adventures of Lolo was DVYB.

 

[creepy_rabbit]

Clear! *zap*
(the thread has been revived)

 

[GotMalkAvian]

ABACABB - Blood code for Mortal Kombat on the Genesis.

JUSTIN BAILEY - Weird code for the original Metroid that resulted in an unarmored Samus with almost every weapon and upgrade.

itisagooddaytodie - Invincibility cheat for Warcraft II.

showmethemoney - Money cheat for Starcraft.

I'd like to say that I remember the konami code by memory, but I always have to look it up for the exact button presses.

 

[shadowmagus]

up up down down left right left right B A B A start- Konami code (specifically Contra)

poweroverwhelming- Starcraft God mode

 

[Eatbrainz]

Morrowind - Player->additem"gold_100"(Number)