Every region, every town, every little corner of Japan seems to have some food that it’s “famous” for. While Japanese food is quite nice, I usually don’t see the differences that make one place’s “special food” different from the rest.
The city of Hakata is known for it’s ramen noodles. Ramen shops in Hakata don’t simply say “Ramen” on them, but proudly proclaim “Hakata Ramen.”
Down here in Kyushu where I live, Ramen isn’t made with a soy or miso based soup, it’s almost always “tonkotsu” ramen which has a milky soup flavored with pork bone. It’s quite delicious however also quite dismaying to vegetarians and non-pork-eaters as it’s almost impossible to find ramen without porkbone broth. This is the case all over Kyushu, so I’m still not sure what makes Hakata different.