Tetsuya Mizuguchi | Code Like It's 198x

In 1994, as Hyper told the story a decade later, Tetsuya Mizuguchi stood among thousands of people at a rave in Switzerland and noticed that the coloured lights and lasers were computer-controlled, all in time with the music. He wanted to make a game that felt like that. At the time he was producing arcade racing games for Sega, and it took him seven years and a change of career to get there. The result was Rez (2001), a shooting game in which every shot plays a sound, and which Mizuguchi described to Edge as a “Dramatic-Trance-Music Shooter”. He has spent the rest of his career, at Sega, at his own studio Q Entertainment and at its successor Enhance, on variations of the same idea.

Fast facts

Born: 1965.
Sega: from 1990 to 2003; producer of Sega Rally Championship (1995), head of the AM Annex team, then of Software R&D No. 9, renamed United Game Artists.
Music games at Sega: Space Channel 5 (1999) and Rez (2001).
Q Entertainment: the studio he co-founded after leaving Sega: Lumines (2004), Every Extend Extra (2006), Child of Eden (2011).
Enhance: founded in the United States in October 2014: Rez Infinite (2016), Tetris Effect (2018).

Sega Rally

Mizuguchi joined Sega in 1990, and Hyper noted that his early work there included computer-graphics demonstrations made on Silicon Graphics workstations. His name reached the Western press with Sega Rally Championship. When Edge met him in Tokyo late in 1995, he was the producer of both the arcade game, built by Sega’s AM3 division on its Model 2 board, and the Saturn conversion, with Atsuhiko Nakamura directing the Saturn conversion. The coin-op had taken ten months to develop, including a trip to the Indonesian rally where Mizuguchi met professional drivers. Converting it, he explained, meant rebuilding it: “It’s not possible to make a direct conversion. First, the number of polygons used is different on both versions.” Edge judged the Saturn version “easily the most impressive example yet of the Saturn’s abilities”. Edge found him at the same time producing Manx TT, a motorbike racer for AM3 whose cabinet the player sat astride.

By 1996 he was running his own team of about 15 people, AM Annex, and making Sega Touring Car Championship. Even then the music mattered to him. He told Edge that the game would have techno by Japanese, Belgian and Italian artists, “to make BGM (background music) which fitted with the acceleration you feel in the game”, and that he wanted, one day, “to make new games that are based on dreams”. Sega Rally 2 followed in 1998 on the Model 3 board, with Mizuguchi as producer and Kenji Sasaki as director.

Space Channel 5

In 1999 Mizuguchi left the arcade side of Sega to set up Software R&D No. 9 and make a game for the Dreamcast, and moved his team to Shibuya, which he told Edge was “maybe the only town in Japan which has a strong culture of its own”. Space Channel 5 cast the player as Ulala, a 25th-century television reporter who beats invading aliens by dancing: the player repeats the commands in time with the music, and each rescued bystander joins the dance behind her. Mizuguchi called it “Dance, fight and drag”, and aimed it at “people who don’t play games”, because “recent titles have featured quite tough gameplay, which puts a lot of newcomers off”. Sega launched it in Japan with a street event in front of Shibuya station, with Mizuguchi demonstrating it on three giant screens. The rhythm-matching entry explains how its controls worked.

Rez

Rez, first known as K-Project in a nod to the painter Wassily Kandinsky, grew from the rave. Edge, previewing it in August 2001, explained its premise: the player moves on rails through a computer network corrupted by a virus, locking on to enemies and destroying them, and “each one contains a sound or a colour that will be triggered”, in Mizuguchi’s words. The soundtrack builds up layer by layer as the player progresses, and the wireframe world slowly becomes solid. Mizuguchi told the magazine that his superiors had asked, “A shooting game? Nowadays?”, and that he had chosen the form because shooting games were simple. He compared the game to throwing stones into a lake: if each throw makes a satisfying sound, “you would do it again and again, right?” He was wary of grander claims: “I don’t like the word ‘art’ to describe this game.”

The word most often attached to Rez is synaesthesia, the condition in which one sense triggers another, such as hearing colours. It came from Mizuguchi’s own account of the game. Edge’s preview called it his “synaesthesia-driven new videogame”, and Hyper explained in 2005 that Mizuguchi, “a great admirer of Kandinsky’s”, thought the painter’s idea that the senses could overlap “could be translated into a game”. Hyper also reported that his sound designers were told “not to compose any music, only sounds”, and that many of the programmers had never been to a club, so he had to explain the feeling he wanted until the team understood it. A peripheral, the Trance Vibrator, let players feel the beat as well.

Rez came out in Japan at the end of 2001, on the Dreamcast and the PlayStation 2. By then Sega had stopped making the Dreamcast, and Mizuguchi’s department had become United Game Artists in Sega’s restructuring. In 2003 Sega reorganised its studios and closed United Game Artists, and in October that year Mizuguchi left the company.

Q Entertainment and Lumines

Mizuguchi set up Q Entertainment with former colleagues after leaving Sega. Its first game, Lumines, was a launch title for Sony’s PSP in Japan at the end of 2004: a falling-block puzzle in which a “timeline” sweeps across the screen in time with the music, clearing matched blocks as it passes. Edge called it “the only completely original PSP launch title, the first post-UGA offering from Tetsuya Mizuguchi”, and gave it eight out of ten. Mizuguchi later told Edge how the publisher had reacted when he presented it: “A puzzle game? As a music game?”

Q Entertainment grew quickly. It worked with Nintendo on Meteos for the DS, designed by Masahiro Sakurai, and made Every Extend Extra (2006), which Edge reviewed alongside a long interview in which Mizuguchi described the Japanese idea of mediabigaku, “media aesthetic”, as the place he took refuge when unsure what to do next. “What kind of stimulation will trigger which emotion? … This study is my life’s work,” he said. He also admitted that a Rez sequel “would require Sega’s approval as the company owns the IP”.

The spiritual sequel came instead as Child of Eden (2011), published by Ubisoft and played either with a controller or with Microsoft’s Kinect camera, with a story tied to Mizuguchi’s music project Genki Rockets. He began it, he told Edge, by writing “a memo. It’s like a poem, and it’s 40 pages long”, which everyone at Q read. “To me, Child of Eden is a music shooter, a synaesthesia shooter,” he said in 2011.

Enhance and Tetris Effect

Mizuguchi’s next company, Enhance, was established in the United States in October 2014, with an office in Tokyo, and he is its chief executive. Its first project was Rez Infinite, a version of Rez for virtual reality headsets, released in 2016; Wireframe recorded that around 2015 Enhance was developing it with outside help. In 2018 Enhance published Tetris Effect for the PlayStation 4 and PlayStation VR. Mizuguchi introduced it on the PlayStation Blog by describing the “Tetris effect” itself, the tendency of people who play a lot of Tetris to see its shapes in real life, and said the game was made by “a lot of the same folks that worked with me to make Rez Infinite and Lumines”. Wireframe gave it 90% and wrote that the music made the player “a conductor, and Tetris your orchestra”. Enhance has since released Tetris Effect: Connected and, in 2025, a new Lumines, Lumines Arise.

Sources

Edge issue 27, December 1995: Sega Rally Saturn preview and interview with Atsuhiko Nakamura and Tetsuya Mizuguchi (producer of the arcade and Saturn versions, the ten-month development, the Indonesian rally, the conversion); Manx TT preview (Mizuguchi as producer).
Edge issue 37, October 1996, pp. 47–48: AM Annex and Sega Touring Car Championship (about 15 staff, techno music, “games that are based on dreams”).
Edge issue 55, February 1998: Sega Rally 2, Mizuguchi as producer and Kenji Sasaki as director, AM Annex.
Edge issue 77, Autumn 1999, pp. 34–36: Space Channel 5 preview and interview (Software R&D No. 9, Shibuya, “Dance, fight and drag”, “people who don’t play games”).
Edge issue 80, January 2000: the Space Channel 5 launch event in Shibuya.
Edge issue 100, August 2001: Rez preview and interview (K-Project and Kandinsky, “synaesthesia-driven”, “Dramatic-Trance-Music Shooter”, “A shooting game? Nowadays?”, the lake, “the word ‘art’”; United Game Artists).
Hyper (Australia) issue 135, January 2005, p. 89: feature on Rez (joined Sega in 1990, CG demonstrations, the rave in Switzerland in 1994, Kandinsky and synaesthesia, “only sounds”, the Trance Vibrator, Q Entertainment, Lumines and Meteos).
Edge issue 146, February 2005, p. 74: Lumines review (PSP, Bandai/Q Entertainment, “the first post-UGA offering”, eight out of ten).
Edge issue 149, May 2005: Masahiro Sakurai on designing Meteos.
Edge issue 167, October 2006, pp. 64–68, “The Gridrunner”: interview with Mizuguchi (Every Extend Extra, mediabigaku, “my life’s work”, the reaction to Lumines, the Rez rights).
Edge issue 221, December 2010, pp. 56–62: Child of Eden feature (Ubisoft, Kinect and controller play, Genki Rockets, the 40-page poem).
Edge issue 229, July 2011, p. 112: interview with Mizuguchi as founder of Q Entertainment (“a music shooter, a synaesthesia shooter”).
Wireframe issue 4, December 2018, p. 60: Tetris Effect review (Resonair, Enhance, PS4 and PSVR, 90%).
Wireframe issue 50, April 2021, p. 31: Enhance developing Rez Infinite around 2015.
Tetsuya Mizuguchi, “Tetris Effect announced for PS4 and PS VR, from Rez creator Tetsuya Mizuguchi”, PlayStation Blog, 6 June 2018 (web; his own announcement). https://blog.playstation.com/archive/2018/06/06/tetris-effect-announced-for-ps4-and-ps-vr-from-rez-creator-tetsuya-mizuguchi
Enhance, company information and home page (accessed September 2026) (web): established in the US in October 2014, Tokyo branch, Mizuguchi as CEO; Tetris Effect: Connected and Lumines Arise (2025). https://enhance-experience.com/about/
Sega Retro, “Tetsuya Mizuguchi” (accessed September 2026) (web, secondary): United Game Artists from April 2000; the closure of UGA in Sega’s 2003 reorganisation; his departure from Sega in October 2003; Rez Infinite in 2016. https://segaretro.org/Tetsuya_Mizuguchi
Wikipedia, “Tetsuya Mizuguchi” (accessed September 2026) (web, secondary): date of birth; Q Entertainment co-founded in 2003. https://en.wikipedia.org/wiki/Tetsuya_Mizuguchi