Actually, it’s up down, up down, left right, left right b a start.

Posted at 9:23 am on Dec 8th, 2008 by HPIguy

The most bastardized cheat code of all time…

Contra 30 guys: up up, down down, left right, left right, b, a, (select if two player), start

Now where did abacabb come from? :D

Posted at 9:37 am on Dec 8th, 2008 by Jake

ABACABB- Code to unlock blood in Mortal Kombat for the Sega Genesis. Also the name of a heavy-metal band.

Posted at 9:54 am on Dec 8th, 2008 by j s

now what has this to do with “nintendo”?

Posted at 11:25 am on Dec 8th, 2008 by anon

is the keypad an old nes padle? … you didn’t show that part…..

Posted at 11:52 am on Dec 8th, 2008 by dravin

yes, the keypad is an NES controller. it can be seen dangling from the board in the pictures of the instructable. it would have been nice to see it in the video.

Posted at 12:53 pm on Dec 8th, 2008 by Caleb Kraft

a b a c a b
it’s a chord progression used in the song Abacab from the band Genesis (too).

Posted at 2:50 pm on Dec 8th, 2008 by Rick

If a visitor doesn’t enter the code correctly, why not, say, electrocute him/her in a comical manner so that they can’t make an attempt to re-enter the correct code for 10 seconds? :-)

Posted at 3:15 pm on Dec 8th, 2008 by Gary

from a burglar. The lock is so weak that it seems a shame you have put in the work on a system so fundamentally flawed. Would kick off the door then steal the computer and everything else.

Posted at 4:06 pm on Dec 8th, 2008 by hahaha

Isn’t up up down down left right left right b a select start the cheat code for Heli Attack 3 (unlock everything)?

Posted at 4:15 pm on Dec 8th, 2008 by BR

I <3 the konami code.
up up down down left right left right b a start
<3 it in the song N.E.S. by YTCracker

Posted at 7:31 pm on Dec 8th, 2008 by iSecks

Ah man. I had the idea to create a Konami Code lock :(

Posted at 8:35 pm on Dec 8th, 2008 by TheKhakinator

When they do it, you’re never there
When they show it, you stop and stare
a b a c a b isn’t anywhere

a b a c a b

Posted at 6:07 am on Dec 9th, 2008 by strider_mt2k

It’s called the konami code because it’s in several games. I don’t know which publisher though…
>.>

maybe if there was an online encyclopedia to inform us? [I didn't read the article either...yet]

Posted at 12:22 am on Jan 30th, 2009 by Anon

whoo, I managed to read the article and not follow any links! a rare event indeed. [this and above ~~PidGin128]

Posted at 12:25 am on Jan 30th, 2009 by Anon

whoo, I managed to read the article and not follow any links! a rare event indeed. [this and above ~~PidGin128]

Posted at 12:29 am on Jan 30th, 2009 by Anon2

sorry for all the posts. I thought the warning was false >.< /me sorry

Posted at 12:39 am on Jan 30th, 2009 by An0n