Normally I wouldn't link to a viral marketing campaign, but this is the weirdest way to sell a product I've ever seen.
It freaks me out that they spent this much time putting it together. I've spent far too long typing in weird things on the chance that the chicken won't do it, and I've only found one or two so far (within reason).
Although it is extremely odd, it is nice to finally see a little creativity put into advertising. It's not just a quirky short, not just a one line joke, not just a lucky dip or sweepstake, and not just some sort of trick to get your to go into their store. Someone has actually put some time and effort (and possibly sort kind of heavy drug use) into creating a new concept.
And now I'm off to make the chicken do karate again.