Because she seems popular enough to be recognised internationally, I figured she had some lore going on.
It's thanks to internet-driven user-generated content, her striking design, and the viral spread of early music on Nico Nico Douga.
Crypton Future Media marketed her as an approachable canvas rather than just a locked-down corporate product, allowing independent producers to create and share hits freely
Basically ... internet is the one who made her famous.
She seems more popular than the product she's mascotting herself.Half-way? Since when? Their downfall after the Dreamcast?
Well, what's another 35 years I suppose.

Sonic was briefly more recognizable among children in the United States than Mickey Mouse during the early 1990s (specifically around 1992–1993), according to historical market research and Q Scores.
That's his potential.
Sadly he could not maintain his popularity in mid and late 1990s.
