For example, in Contra, when you enter the code you get 30 extra lives. It was this trick in Contra that made the code extremely popular in 1987, and since then other developers have been using it.

Celebrating a new $10 bill marking Canada’s 150th birthday, Bank of Canada snuck in an Easter egg. Visitors to the page who punch in the unlimited lives code from Konami’s “Contra ...

I've read from numerous sites that the 30 lives code is activated in the Xbox Live arcade version of Contra, yet i have never gotten it. Anybody have any luck enabling it? Is there a special trick ...

A History of Gaming's Most Iconic Cheat The Konami Code – also known as the Contra Code or 30 Lives Code – is without a doubt the most iconic cheat code in all of video gaming.