Yuji Naka

Yuji Naka
中 裕司
Naka in 2015
Born	(1965-09-17) September 17, 1965 (age 58) Hirakata, Osaka, Japan
Other names	YU2[1]
Occupation(s)	Game designer, producer, programmer
Years active	1984–2022
Employers	Sega (1984–2006) Prope (2006–2022) Square Enix (2018–2021)
Notable work	Sonic the Hedgehog Phantasy Star Nights into Dreams
Children	2

Yuji Naka (中 裕司, Naka Yūji, born September 17, 1965), credited in some games as YU2, is a former Japanese video game programmer, designer and producer. He is the co-creator of the Sonic the Hedgehog series and was the president of Sonic Team at Sega until his departure in 2006.

Naka joined Sega in 1984 and worked on games including Girl's Garden (1985) and Phantasy Star II (1989). He was the lead programmer of the original Sonic the Hedgehog games on the Mega Drive in the early 1990s, which greatly increased Sega's market share. Naka developed Sonic the Hedgehog 2 (1992), Sonic the Hedgehog 3 (1994) and Sonic & Knuckles (1994) in California with Sega Technical Institute. He returned to Japan to lead development on further Sonic Team games including Nights into Dreams (1996), Burning Rangers (1998), Sonic Adventure (1998) and Phantasy Star Online (2000). After Sega left the console market in 2001, Naka remained at the company as an executive officer and oversaw the company's output for the next five years.

In 2006, Naka left Sega and founded the independent game company Prope. He joined Square Enix to direct the platform game Balan Wonderworld (2021), from which he returned to work with Sonic co-creator Naoto Ohshima. Naka was removed from the project six months before the game was released, and Balan underperformed critically and commercially. He left Square Enix in April 2021. In 2023, Naka was found guilty of insider trading at Square Enix.