<P> Sonic Adventure (1998) was Sonic Team's return to the character for a major game . It featured Sonic returning from vacation to find the city of Station Square under attack by a new foe named Chaos, under the control of Dr. Robotnik (now known as Dr. Eggman). It was also the first Sonic game to feature a complete voice - over . Sonic Adventure 2 (2001) placed Sonic on - the - run from the military (G.U.N.) after being mistaken for Shadow the Hedgehog . Sonic Heroes (2003) featured Sonic teaming up with Tails and Knuckles, along with other character teams like Team Rose and Chaotix, against the newly rebuilt Metal Sonic, who had betrayed his master with intentions of world domination . Sonic the Hedgehog (2006) features Sonic in the city of water, "Soleanna," where he must rescue Princess Elise from Dr. Eggman while trying to avoid a new threat to his own life, Silver the Hedgehog . He is the only playable character in Sonic Unleashed (2008), in which he unwillingly gains a new personality, "Sonic the Werehog," the result of Sonic being fused with Dark Gaia's power . He gains strength and flexibility in exchange for his speed, and new friends including a strange creature named Chip who helps him along the way . In Sonic Colors (2010), Eggman tries to harness the energy of alien beings known as "Wisps" for a mind - control beam . The anniversary title Sonic Generations (2011) features two playable incarnations of Sonic: the younger "classic" Sonic, whose gameplay is presented in a style reminiscent of the Mega Drive / Genesis titles, and present - day "modern" Sonic, who uses the gameplay style present in Unleashed and Colors, going through stages from past games to save their friends . Sonic Generations features various theme songs including modern and retro versions that are able to be selected from throughout Sonic's twenty - year history . In April 2013, Sega announced that Sonic Lost World would launch in October 2013 for the Wii U and Nintendo 3DS . </P> <P> Sonic and the Secret Rings (2007) features Sonic in the storybook world of One Thousand and One Nights . A sequel, titled Sonic and the Black Knight (2009), continued the storybook theme, this time taking place within the realm of the Arthurian legend . </P> <P> Sonic has also been featured in other games of many genres other than 2D and 3D platform games . These include Sonic Spinball, Sonic Labyrinth (1995), the racing games Sonic Drift (1994), Sonic Drift 2 (1995), Sonic R (1996), Sonic Riders (2006), Sonic Rivals (2006), Sonic Rivals 2 (2007), Sonic Riders: Zero Gravity (2008), and Sonic Free Riders (2010), the fighting games Sonic the Fighters (1996) and Sonic Battle (2003), the mobile game Sonic Jump (2005), and the role - playing video game Sonic Chronicles: The Dark Brotherhood (2008). </P> <P> Video games such as Dr. Robotnik's Mean Bean Machine (1993), Knuckles' Chaotix (1995), Tails' Skypatrol (1995), Tails Adventure (1995), and Shadow the Hedgehog (2005) starred supporting characters of the Sonic series, although Sonic himself cameos in most of these titles . </P>

Who does the voice of sonic the hedgehog