In which year was the first game of the Sonic Adventure video game series released?
Sonic Adventure Sonic Adventure is a platform video game developed by Sonic Team and published by Sega. Originally released for the Dreamcast, it was the first game in the main "Sonic the Hedgehog" series since "Sonic & Knuckles" (1994), and follows the respective quests of Sonic, Tails, Knuckles, Amy, E-102 Gamma, and Big to stop Doctor Ivo "Eggman" Robotnik from obtaining the seven Chaos Emeralds and releasing an ancient evil.
Space Harrier Space Harrier (Japanese: スペースハリアー , Hepburn: Supēsu Hariā ) is an arcade video game developed and released by Sega Enterprises in December 1985. Originally conceived as a realistic military-themed game played in the third-person perspective and featuring a player-controlled fighter jet, technical and memory restrictions at the time resulted in Sega developer Yu Suzuki redesigning it to fit a fantasy setting centered around a jet-propelled human character. Critically praised for its innovative graphics and gameplay, "Space Harrier" is often ranked among Suzuki's best works and considered the first successful entry in the third-person and rail shooter game genres. It has made several crossover appearances in other Sega titles and inspired clone games by various developers, while PlatinumGames director Hideki Kamiya cited it as an inspiration for his entering the video game industry.