Sonic doesn't care about copyright laws. : r/SonicTheHedgehog

No Copyright law in the Universe is going to stop me!!! : r/ SonicTheHedgehog

SEGA and Ian Flynn team up to release special Sonic encyclopaedia for 30th anniversary - My Nintendo News

No copyright law in the universe is going to stop me! : r/SonicTheHedgehog

When will Sonic the Hedgehog enter the public domain? : r/SonicTheHedgehog

Because of how superior fan-made Sonic games are to the official ones from SEGA, is SEGA deliberately tasking Sonic fans with saving Sonic the Hedgehog in their stead? - Quora

Sega Is Still Cool With Sonic Fan Games, Provided No Profit Is Involved

Sonic Superstars really is bringing something totally new to the 32-year-old series

Rumor: A Hollywood-Based Marketing Firm May Have Leaked Sonic's Movie Design - My Nintendo News

Sonic the Hedgehog, Heroes Wiki

Sonic the Hedgehog Big Boy's Red Short Sleeve T-Shirt Tee NEW

Cyclops sonic no copyright law in the universe by Taysean4 on DeviantArt

Sonic the Hedgehog: The Movie (DVD, 2004) for sale online