Few things are worse on the internet than reaching a 404 error page. It's soul sucking, cable checking, life wondering, browser refreshing, absence inducing, mortality questioning bad. And it doesn't always have to be! Some 404 page not found errors are hilarious. A few are entertaining. This one has to be the most fun.
If you run into a page that doesn't exist on designer and developer Norbert Landsteiner's mass:werk website, you get to play a version of Space Invaders! It's great as the 404 error actually acts as an obstacle (or shield) in the game. Check it out here and never question life without the Internet ever again. [mass:werk via Laughing Squid]