The Koreans seem to love their squids and octopuses (octopi?), and anything in between. Stalls selling roasted squids and octopuses are all over the place. Make your selection and the vendor will roast it over charcoals (or press it between two flat electric heaters?), slice them up and serve them in nice packets. Just munch away, and just don't give a damn how your breath smells!
Well, I love them delicious roasted squids too. Go to hell with my cholesterol watch! :-)