Why Does Sonic have 1 eye with 2 pupils?

Sonic the Hedgehog is designed with a single eye featuring two distinct pupils to create a unique and recognizable character aesthetic. This design choice simplifies animation and lends Sonic a more expressive face, allowing for a wide range of emotions. It also enhances his cartoonish appeal, making him stand out among other video game characters. This stylized look is a hallmark of many classic Video Games, where simplicity often complemented the limitations of the technology at the time.