 Sonic Lost World is a platform game with action @-@ adventure elements , in which the player controls Sonic the Hedgehog as he travels across the Lost Hex in order to rescue captured animals and stop the Deadly Six . Levels range from side @-@ scrolling 2D levels to fast @-@ moving 3D linear levels to levels taking place on spherical worlds similar to the cancelled Sonic X @-@ treme and the Super Mario Galaxy series . This also translates to the 3DS version , as it was the first handheld game in the series presented entirely in 3D . 
