Anniversaries/December 9
From Sega Retro
December 9 (add)
- 1989 - Tatsujin is released for the Mega Drive in Japan.
- 1995 - The second Joypolis indoor theme park, Niigata Joypolis, is opened to the public.
- 2010 - Bakugan Battle Brawlers DS: Defenders of the Core is released for the Nintendo DS in Japan.