The term 'videogame hedgehog' refers to the popular Sega character SONIC the Hedgehog. SONIC is a blue anthropomorphic hedgehog who has been the mascot of Sega since 1991 and has starred in numerous video games, television shows, and comic books. He is known for his speed and ability to curl into a ball, allowing him to roll at high speeds and destroy obstacles. SONIC is one of the most recognizable characters in the gaming world and has become an icon of the gaming industry.