It's not the exact Konami code, but it's pretty close, and you will need it if you want to change some of the Xbox 360's Netflix app's more obscure settings. Pressing up, up, down, down, left, right, left, right, up, up, up, up after launching the app, you enter into a sort of debug menu.

Reddit user roadrash1992 came across the the function while trying to associate the app to a different gamertag, but it also lets you play with things like a frame rate counter, AV stats, and title safe areas (whatever that is).

[via Reddit]