There's a marketing war going on in Japan's fast food industry. Everyone's trying to one-up each other amid intense competition.

In 2010, McDonald's and KFC had an all-out advertising war to win chicken-lovers across the nation. Wendy's couldn't handle the heat in 2009 and was forced to pull out. It didn't re-enter the market until the very end of 2011.

International fast food titans have to deal with each other, plus, they have to compete with the many local chains, some of which are quite powerful.

Japan has had a recent interest in more sophisticated items, and as the chains keep pushing the envelope, you end up getting some pretty bizarre things on the menus.