Anniversaries/December 30
From Sonic Retro
December 30 (add)
- 1998 — Issue #68 of the Sonic the Hedgehog comic series by Archie Comics is released in North America. Issue #146 of Sonic the Comic is released in the United Kingdom.
- 2003 — Sonic Heroes Koushiki Guide Book, a book, is released alongside the game it is for, Sonic Heroes, for the PlayStation 2, Nintendo GameCube and Xbox in Japan.