With Lost World, Sonic is said to be facing one of his toughest challenges to date. The premise of the game is that Dr. Eggman has contracted six creatures known as the Deadly Six to do his bidding. The Six decide to rebel against him and, as a result, this game will see Sonic and Eggman working together in order to effectively face them.
The Wii U and Nintendo 3DS versions of Lost World will offer players different features according to what system they choose. These include Wii U exclusive powers that can be accessed via the Wii U gamepad and fully 3D levels with special stages in the 3DS version. Both versions will feature competitive multiplayer modes.