Editing Tetsuya Mizuguchi (section)

===Sega===
Mizuguchi worked for Japanese game developer Sega from 1990 to 2003 and began his career – not on a game – but by designing [[arcade cabinet]]s and an interactive 'ride' titled ''Megalopolis,'' combining then-embryonic 3D polygonal graphics and CGI ([[Computer-generated imagery]]) with the physical experience of Sega's hydraulic 'AS-1' motion simulator.<ref name="NGenInt"/> He went on to develop the acclaimed racing simulator, ''[[Sega Rally Championship]]'', which was influential in the racing space, inspiring future racing game franchises like ''[[Colin McRae Rally]]'' (another rally simulator) and the rally segments of ''[[Gran Turismo (series)|Gran Turismo]]''. After forming his own division within Sega, Sega AM Annex,<ref>{{cite magazine|title=Sega AM Annex|magazine=[[Next Generation (magazine)|Next Generation]]|issue=23 |publisher=[[Imagine Media]] |date=November 1996|pages=76–79}}</ref> he continued in the racing genre with ''[[Sega Rally Championship 2]]'' and ''[[Sega Touring Car Championship]]''. During one trip to [[Zürich]] in 1998, Mizuguchi witnessed a music festival in which he observed how people were moving toward the music and how the music, sounds, colors, and dancing would change accordingly. Mizuguchi recognized what he observed as synesthesia and decided to focus on rhythm-based music games where he co-created ''[[Space Channel 5]]'', ''[[Space Channel 5: Part 2]]'', and ''[[Rez (video game)|Rez]]''.<ref name="Mizuguchi-origins" /> Both ''Space Channel 5'' and ''Rez'' are referenced in modern gaming media as essential and influential to the development of the modern wave of music-rhythm games, with [[Harmonix Music Systems]] co-founder, [[Alex Rigopulos]] citing Mizuguchi as an influence in Harmonix's history. Mizuguchi's final position at Sega was Chief Creative Officer of Sega's [[United Game Artists]] game division.

In September 2003, Sega performed an internal restructuring of its staff. Among these changes was the dissolution of [[United Game Artists]] and the transfer of its members into [[Sonic Team]]. The following month, Mizuguchi announced that he would leave Sega on October 10, 2003.  He cited the changes in the corporate culture after the [[Sega Sammy Holdings|Sega-Sammy merger]] and viewed that as an obstacle to what he wanted to do.<ref>Kikizo Staff. [http://games.kikizo.com/features/tetsuya_mizuguchi_iv_oct05_p1.asp Tetsuya Mizuguchi Interview 2005] {{Webarchive|url=https://web.archive.org/web/20051227045434/http://games.kikizo.com/features/tetsuya_mizuguchi_iv_oct05_p1.asp |date=2005-12-27 }}.  October 13, 2005.  Retrieved October 15, 2005.</ref> He announced that he would work independently in the [[video game]] industry through an – at the time – unnamed company.