Sonic the Hedgehog — Archie Comics
Issue: #276
The Blue Blur is back from the events of "Worlds Unite" and ready to save the world! In "Cold Hearted," Sonic embarks on a quest through the Arctic to find and recover the all-important Gaia Keys! Collecting them all is essential for fixing the shattered world. It's a pretty chill mission until Egg Boss Tundra steps in to put the freeze on Sonic's plans! Meanwhile, Dr. Eggman is "Back in Business"...
Creators: John Workman, Terry Austin, Evan Stanley, Stephen Downer, Sega, Rick Bryant, Ian Flynn, Jonathan Gray, Vincent Lovallo, Adam Bryce Thomas, Gabriel Cassata
Characters: Tundra the Walrus, Dr. Robotnik, Orbot, Metal Sonic, Chip, Sonic, Rotor, Cubot