Takoyaki is a Japanese variety of battered and fried octopus. There's a soda that tastes just like it. Master Blaster of Rocket News 24 tried it as well as other flavors including salted watermelon, corn potage and curry.
We dish up more neat food posts at the Neatolicious blog
Also FYI takoyaki sauce is awesome on lots of foods.
I really like the garlic chili one myself. I'm not really sure if these are one of those sort of joke things just for fun and/or to see what Americans will try because its Japanese.