I have fond memories of playing the arcade game Street Fighter in the local mall when I was growing up. Street Fighter went on to be a successful game on various video game consoles, but now you can play it on YouTube...sort of.
Now that links can be embedded into YouTube videos, some creative people are showing how this feature can be used for something other than advertising. Links within video create a very different kind of online video experience. You'll see it's not an ideal video game platform, but I love the fact that we see what a video is like with a of interactivity where the viewer calls the shots. Sounds kind of like another pasttime from my youth.
[youtube:http://www.youtube.com/watch?v=LPQ1XrllZmA]