Archie Sonic the Hedgehog Issue 166 is the one hundred sixty-sixth issue of the Sonic the Hedgehog comic series published by Archie Comics.
- "Mobius 25 Years Later - Tempus Fugit": The most requested storyline in years has returned with answers to the future! The planet Mobius is ruled with an iron fist by King Shadow with his chief enforcer Knuckles the Echidna. Can an old friend and a kid find the once great hero Sonic, and will Sonic be the once great hero he was after all these years? PLUS: "The Chaotix Connection": Renfield T. Rodent is setting up in Station Square, causing Knuckles the Echidna, the Chaotix, and Rouge the Bat to investigate due to Renfield's previous connections with Robotnik.