The Sonic Mania set was designed by Viv Grannell, a 24-year-old, UK-based fan. She submitted it to Lego in 2019, and it gathered enough support to get the company's attention
"I've been invested in the world of Sonic for almost my entire life, and it's such a perfect fit for the LEGO system that I spent about a year rallying support for it to happen," Grannell said in a release. "Having 10,000 people back my design was overwhelming enough, even with friends and family behind me, but having it be selected for further development was the most exciting secret I have ever had to keep!"
Watch this: We built the Lego Nintendo Entertainment System. How long did it take?
You might remember Green Hill Zone as the first level from the original 1991 Sonic the Hedgehog. Grannell's set is based on 2017's excellent Sonic Mania, which pays homage to the speedy Sega mascot's 2D adventures.
It's unclear when this set will come out, but the Sonic franchise is celebrating its 30th anniversary this June.