The Konami Code—up, up, down, down, left, right, left, right, B, A, Start—does wonderful things to games like Gradius and Contra. But it also does unexpected things on the internet, as ESPN.com recently proved.

The sports news outlet isn't the only online destination to (unwittingly?) have its behavior change when video game nerds input the Konami Code into the site. There are, at current count, eight web sites that support Konami Code input, as collected by the aptly titled Konami Code Sites.

Some simply add a bit of ninja, others offer the option to play an actual game. It's a trend we hope continues. Just with fewer unicorns.

Konami Code Sites [via n0wak]