Sonic's Ultimate Genesis Collection

This Genesis collection is a collection made by Sega and Backbone Entertainment. It has 42 games to play, with six unlock able games like Fantasy Zone and the Arcade Shinobi. It has a large variety of classic games to play.

Notable Games
It has many classic games like the Sonic games, Golden Axe, Ecco the Dolphin, and many more. It also has standalone games like Gain Ground, Fatal Labyrinth, or KC.

It has a bunch of unlockables, too. These include Zaxxon, Fantasy Zone, Arcade Altered Beast, Arcade Shinobi, the original Phantasy Star, Alien Syndrome, and Congo Bongo.

Capabilities
It is capable of saving and loading data at will. This allows players to beat games like Kid Chameleon or Comix Zone without getting a game over from doing the whole thing in one sitting. Players can resize their screen, and the graphics are made better. They can select the controls to make it like a Sega Genesis controls and even select favorite games. Additionally, players can alter the list of the games by making it in certain orders.

Trivia

 * It does have a large amount of classics, but also missing a few classic games like Revenge of Shinobi and the TJ&E series.