Takoyaki (たこ焼き, lit. „grilled octopus“) are a popular kind of street food which you come across around nearly every corner in large Japanese cities, especially in the Kansai region (Ōsaka, Kyōto, …).
These came from the Tenjinbashi-suji in Ōsaka.
Edit: correct translation
Will it make you feel better if I tell you it’s actually fake and just made of fish?
(It isn’t actually… but I love octopus balls too… live in fiction with me fiction)