LEGO Sonic the Hedgehog BrickHeadz are based on the Sonic the Hedgehog video game franchise and LEGO sets. The Sonic BrickHeadz sets feature stylized, blocky representations of popular characters such as Sonic and Miles. They are built using LEGO bricks in a standardized scale and form, with a distinctive squared-off design, large eyes, and a compact, displayable size. BrickHeadz has been particularly popular among adult fans of LEGO (AFOLs) and collectors due to their display-friendly nature, the wide range of characters, and the unique, recognizable style.