 Nathan Grayson of Kotaku praised the demo for its balance of Genesis Sonic elements and original content : he described the product as " a love letter to classic Sonic , except when it 's not " . He also praised the game 's enemies , and , while he experienced minor control issues , guessed that they may have resulted from his use of an Xbox 360 controller instead of a keyboard . He found the game 's pacing to be slower than that of the Genesis Sonic games because of the added combat sequences , which sacrificed the feeling of " getting into a groove with a classic Sonic level " , though felt that this gave the player " time to look around , take in the sights , and think , ' Hey , I want to explore that ' " . He concluded that the game 's sense of speed was " solid " . Grayson was , however , critical of the voice acting , exclaiming " Yikes " . 
