Wikipedia:Articles for deletion/List of Konami code games
Yes, of course sources are needed, and simply saying they're out there isn't enough.  I didn't have time to hunt for them right then... http://www.1up.com/do/feature?cId=3108751 has a lot of these listed.  More research is needed to find sources for games not listed there, and to verify what the code does for those games where detail isn't provided, of course.  Just needing sources isn't a reason for deletion in an article like this, though; it's a reason to tag the article for cleanup and work on it.  In my earlier comment I was trying to address the nominator's point, which is that |Wikipedia is not an instruction manual -- to clarify, I don't think this violates that rule.  It's not trying to inform the reader on how to play the games, it's listing the games that use the code and its effect in those games as information about the history of the code
— User:Pinball22, 14:24, 25 January 2007 (UTC)
Stance: comment
Cited policy: WP:NOT (Wikipedia:What Wikipedia is not)