is a fictional character in
Sega's
Sonic the Hedgehog series of
video games. He is a red
anthropomorphic echidna who is determined and serious but sometimes gullible. He can glide and climb up walls, and is a powerful fighter due to his spiked gloves. He serves as the guardian of the Master Emerald, a huge gemstone that controls the series' integral
Chaos Emeralds.