Anniversaries/December 25
From Sonic Retro
December 25: Christmas Day (add)
- 1993 — Issue #16 of Sonic the Comic is released in the United Kingdom.
- 2015 — Sonic Runners Original Soundtrack Vol. 2, a digital album, is released on iTunes and Amazon.
- 2019 — Issue #24 of the Sonic the Hedgehog comic series by IDW Publishing is released in North America.