Which of these characters is the mascot of the video game company SEGA?

The mascot of the video game company Sega is Sonic the Hedgehog. Sonic was introduced by Sega in 1991 and quickly became the face of the company due to his popularity and widespread recognition. With his iconic blue color, speedy abilities, and signature quills, Sonic has become an enduring and beloved character in the gaming industry. His energetic and adventurous personality, combined with his signature catchphrase "Gotta go fast!", perfectly embodies Sega's branding and the fast-paced nature of their games.