30 January 2004 - Sega-Europe/ Tough Team Interview with Yuji Naka: Vector, Sonic Heroes, Story, Team Gameplay
03 February 2004 - Electronic Gaming Monthly Interview: Sonic Heroes, Chao, Multi-platform
03 February 2004 - EGM Interview with Takashi Iizuka: Sonic Heroes, Japanese and American Games
10 February 2004 - GMR Interview with Takashi Iizuka: Sonic Heroes, PS2, NiGHTS
20 February 2004 - IGN Interview with Yojira Ogawa: PSO III, NiGHTS
16 March 2004 - GMR Interview with Yuji Naka and Mineko Okamura: Astro Boy, Chu Chu Rocket, PSO
12 May 2004 (approximate date) - May 12 2004 (approximate date) - Sega.com Sonic DS Press Release (with comments from Yuji Naka): Sonic DS , Project Rub
13 May 2004 - IGN Interview with Yuji Naka: Sonic Advance 3, 2D vs 3D
15 June 2004 - The Next Level Interview with Yuji Naka: Playstation 2, Old games, Chaotix, Sonic X, PSO
24 June 2004 - Kikizo Interview with Yuji Naka and Mineko Okamura: Astro Boy, NiGHTS, Future Sonic
07 December 2004 - Gameplanet Interview with Yuji Naka: Sonic, Game Design, Game Hardware
