Anniversaries/May 9
From Sonic Retro
May 9 (add)
- 1994 — Sonic the Hedgehog 3: Official Play Guide, a strategy guide, is published in North America.
- 2005 — Sonic Le Rebelle Coffret 1, a DVD, is released in Canada.
- 2012 — Sonic Riders Original Soundtrack "Speedbeats Grand Prix", Sonic Riders Shooting Star Story Original Soundtrack "Zero Gravity Tracks", and Sonic Free Riders Original Soundtrack: Break Free are made available to download from Amazon in Japan.
- 2015 — "Into the Wilderness", the 25th episode of Sonic Boom, airs in North America.