たこ家道楽
Also known as Kukuru
One of Dotonbori's four famous takoyaki shops, known specifically for the 'surprise' takoyaki: chunks of crab and octopus so oversized they poke out the top of the ball. The source rates it 10/10; fair warning, the chunks make the balls structurally unsound, so expect to lose some on the way to your mouth.
Go for the surprise crab takoyaki — the standard balls are plentiful elsewhere. · Heads up: Big chunks = prone to crumbling. Eat over the tray.