Sonic the Hedgehog (ソニック・ザ・ヘッジホッグ Sonikku za Hejjihoggu?) is a 2D platform video game developed by Sonic Team and published by Sega for the Sega Mega Drive. Featuring the new mascot of Sega, the titular Sonic the Hedgehog, this game served as the launch title for the famous video game franchise known as the Sonic the Hedgehog series.

• 97% polyester, 3% spandex
• Low-profile
• 2 ½″ (5 cm) crown
• Matching undervisor
• Hook & loop closure with square ring
• Head circumference: 22″–23 ⅜″ (56 cm–59 cm)