What inspired Kirby's design?

Sakurai has told the story the same way for decades. Designing his first game at HAL Laboratory at nineteen, he needed a character on screen before the real design existed, so, in his words, he put a Kirby shaped blob in his presentation as a placeholder, and everyone liked it so much the team decided to keep it in the game without any major changes. The blob was known as Popopo while the game went through the titles Popopo of the Spring Breeze and Twinkle Popo.

The simplicity was not only an accident; it fit the assignment. The game was conceived as a game for beginners, and Sakurai wanted, in his words, a cute main character who everyone will love. Satoru Iwata added the practical half of the philosophy: Kirby was given a simple, circular design so that anyone would be able to draw him. A circle, two eyes, a smile, stubby arms, and red feet clear that bar, which is why children have been drawing him accurately ever since.

His abilities were designed the same way, from fairness outward. Sakurai wanted Kirby to fly because losing a life for one missed jump felt unfair. He first imagined Kirby catching enemies with his tongue, then replaced the tongue with inhaling and spitting, which made the mouth, and therefore the round face, the center of the character. No creature, mascot, or earlier character is on record as Kirby's visual source. The design's documented inspiration is a deadline, a beginner audience, and a placeholder its own creator grew fond of.