Sega CD
Released in 1988, the Genesis (known as the Mega Drive in Europe and Japan) was Sega's entry into the fourth generation of video game consoles. In mid-1990, Sega CEO Hayao Nakayama hired Tom Kalinske as CEO of Sega of America. Kalinske developed a four-point plan for sales of the Genesis: cut the console's price, develop games for the American market with a new American team, continue aggressive advertising campaigns, and ship "Sonic the Hedgehog" with the Genesis as a pack-in game. The Japanese board of directors initially disapproved of the plan, but all four points were approved by Nakayama, who told Kalinske, "I hired you to make the decisions for Europe and the Americas, so go ahead and do it." Magazines praised "Sonic" as one of the greatest games yet made, and Sega's console finally took off as customers who had been waiting for the Super Nintendo Entertainment System (SNES) decided to purchase a Genesis instead.
Sega Ages
Sega Ages is a series of compilations and rereleases of classic Sega video games across several platforms, primarily developed by M2. The first set of games was released for the Sega Saturn primarily in Japan, and another set was released on the PlayStation 2 in Japan, known as "Sega Ages 2500". Some of the 2500 titles were released in North America and Europe in "Sega Classics Collection". There is also the "Sega Ages Online" series on the PlayStation Store for PlayStation 3 in Japan, and a new series for the Nintendo Switch will be released on the Nintendo eShop in 2018. The "Sega Ages" series differs from most "retro" video game rereleases in that rather than compiling a number of games, most of them contain only one game and are instead sold at a very low price.