Sonic Team
The initial team formed in 1990 and was composed of developers from Sega's Consumer Development division, including programmer Yuji Naka, artist Naoto Ohshima, and level designer Hirokazu Yasuhara. The team took the name Sonic Team in 1991 with the release of "Sonic the Hedgehog" for the Sega Genesis. The game was a major success that contributed to millions of Genesis sales. The next "Sonic" games were developed by Naka and Yasuhara in America at Sega Technical Institute, while Ohshima worked on "Sonic CD" in Japan. Naka returned to Japan in late 1994 to become the head of CS3, later renamed R&D #8. During this time, the division took on the Sonic Team brand but developed games that do not feature Sonic, such as "Nights into Dreams" (1996) and "Burning Rangers" (1998).
Sonic Mega Collection
"Sonic Mega Collection" features twelve to fourteen complete games in one retail unit. All games are ports of their original versions on the Sega Genesis. High-resolution instruction manual scans are included for each game. Also included is an "Extras" section featuring over 100 scans of "Sonic the Hedgehog" comic covers, illustrations of "Sonic" characters throughout the franchise's history, and a handful of videos promoting other "Sonic" games, including the beginning and end sequences to "Sonic CD". In addition to the seven default games, three unlockable games are included that recreated the "Sonic & Knuckles" "lock-on technology" by allowing players access to new gameplay features and special stages by opening the hatch of the "Sonic & Knuckles" Sega Genesis cartridge and inserting another compatible cartridge, in this case each of the first three games in the "Sonic the Hedgehog" series. Also, four games published by Sega but not in the "Sonic" series could also be unlocked (two in the North American version).