Sonic Adventure 2 was released in June 2001. Sega announced Sonic Adventure 2 in October 1999 and exhibited it at E3 2000. Its locations were influenced by American locations such as San Francisco and Yosemite National Park. The development team expanded upon the presence of the Chao creatures and other player characters. Sonic Adventure 2 was produced in commemoration of the Sonic series' tenth anniversary and was designed to be faster-paced and more action-oriented than the original. The stories are divided into three gameplay styles: fast-paced platforming for Sonic and Shadow, multidirectional shooting for Tails and Eggman, and action-adventure exploration for Knuckles and Rouge.ĭevelopment began soon after the American release of Sonic Adventure in 1999 and lasted 18 months. It features two good-vs-evil stories: Sonic the Hedgehog, Tails, and Knuckles the Echidna attempt to save the world, while Shadow the Hedgehog, Doctor Eggman, and Rouge the Bat attempt to conquer it. Sonic Adventure 2 is a 2001 platform game developed by Sonic Team USA and published by Sega for the Dreamcast.