Question: Sonic Rush Adventure (ソニック ラッシュアドベンチャー , Sonikku Rasshu Adobenchā ) is a 2007 platform game in the "Sonic the Hedgehog" series for the Nintendo DS, Sonic the Hedgehog (Japanese: ソニック・ザ・ヘッジホッグ , Hepburn: Sonikku za Hejjihoggu ) is the title character and protagonist of the same name, the series released by ?

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source: Sonic Rush Adventure
text: Sonic Rush Adventure Sonic Rush Adventure (ソニック ラッシュアドベンチャー , Sonikku Rasshu Adobenchā ) is a 2007 platform game in the "Sonic the Hedgehog" series for the Nintendo DS, developed by Sonic Team and Dimps and published by Sega in most regions except South Korea, where Nintendo published it. The game is a sequel to "Sonic Rush", and the first game in the "Sonic" series to allow online play, via Nintendo Wi-Fi Connection. In "Sonic Rush Adventure", Sonic and Tails are teleported to an alternate dimension, and are helped by Blaze the Cat as they try to find a way to get back to theirs while making rounds with a group of robotic pirates led by Captain Whisker.

source: Sonic the Hedgehog (character)
text: Sonic the Hedgehog (character) Sonic the Hedgehog (Japanese: ソニック・ザ・ヘッジホッグ , Hepburn: Sonikku za Hejjihoggu ) is the title character and protagonist of the "Sonic the Hedgehog" series released by Sega, as well as numerous spin-off comics, five animated shows, and an animated OVA.

source: Sonic the Hedgehog Pocket Adventure
text: Sonic the Hedgehog Pocket Adventure Sonic the Hedgehog Pocket Adventure (ソニック・ザ・ヘッジホッグポケットアドベンチャー , Sonikku za Hejjihoggu Poketto Adobenchā ) , or Sonic Pocket Adventure for short, is a 1999 platform video game in the "Sonic the Hedgehog" series developed by SNK. It was released in December 1999 in North America, and May 2000 in Japan, exclusively for the Neo Geo Pocket Color handheld game console. It is also only the second game of the Sonic series ever to be released on a non-Sega video game console, the first being "Sonic Jam" on the Game.com. The game was praised by critics, receiving perfect scores from multiple reviews.

source: Sonic Rush
text: Sonic Rush Sonic Rush (ソニック・ラッシュ , Sonikku Rasshu ) is a 2005 platform handheld video game developed by Sonic Team and Dimps for the Nintendo DS as part of Sega's "Sonic the Hedgehog" series. It was released on November 15, 2005 in North America, November 18 in the PAL region, and November 23 in Japan. It is a 2D platform game, but Sonic's and Blaze's sprites are rendered in 3D, creating a 2.5D effect. Boss battles, along with a Sonic-exclusive special stage, are entirely 3D. The game's storyline follows the intertwining adventures of a new character, Blaze the Cat, and the series' main character, Sonic the Hedgehog. They respectively battle Doctor Eggman and his doppelgänger Eggman Nega at certain points. The game was announced under the working title "Sonic DS" at Electronic Entertainment Expo (E3) 2004, and under "Sonic Rush" at E3 2005. The game's 2.5D format was based on Sonic Team's idea to combine elements from 2D and 3D games in the series. Upon release, "Sonic Rush" was well-received by critics, with praise stemming from the game's music and similarity to older games in the series and criticism stemming from its overall quickness. A sequel, "Sonic Rush Adventure", was later created and released in 2007.

source: SegaSonic the Hedgehog
text: SegaSonic the Hedgehog SegaSonic the Hedgehog (セガソニック・ザ・ヘッジホッグ , SegaSonikku za Hejjihoggu ) is an isometric platform game in the "Sonic the Hedgehog" series, released by Sega for arcades in 1993. The game supported three players playing simultaneously, and possessed a unique track ball set up for moving on-screen characters. The only other control input was a single button, allowing the player to perform a jumping attack. The use of the trackball has subsequently led to great difficulty in emulation efforts, with Yuji Naka stating it as the reason for it not being included on future compilations or rereleases, such as "Sonic Gems Collection".

source: Sonic the Hedgehog: Triple Trouble
text: Sonic the Hedgehog: Triple Trouble Sonic the Hedgehog: Triple Trouble, released in Japan as Sonic & Tails 2 (ソニック＆テイルス２ , Sonikku to Teirusu Tsū ) is a platform video game developed by Aspect and published by Sega for the Game Gear in 1994. It is the sequel to "Sonic the Hedgehog Chaos" and takes place during the events of "Sonic the Hedgehog 3". The game received mixed reviews, with critics commenting that the game was enjoyable, but too easy, and had too little to make it stand out from previous "Sonic" games. "Sonic the Hedgehog: Triple Trouble" was re-released on the Nintendo 3DS Virtual Console in March 2012.

source: Sonic the Hedgehog (OVA)
text: Sonic the Hedgehog (OVA) Sonic the Hedgehog (ソニック★ザ★ヘッジホッグ , Sonikku za Hejjihoggu ) is a two-episode 1996 Japanese anime OVA series based on Sega's best-selling franchise "Sonic the Hedgehog". The anime features Sonic, Tails, Knuckles, Dr. Eggman (Dr. Robotnik in the English release), Metal Sonic and a few supporting characters created exclusively for the OVA.

source: Sonic the Hedgehog 2 (8-bit video game)
text: Sonic the Hedgehog 2 (8-bit video game) Sonic the Hedgehog 2 (ソニック・ザ・ヘッジホッグ2 , Sonikku za Hejjihoggu Tsū ) is a side-scrolling platform video game developed by Aspect and published by Sega for the Master System and Game Gear. The Master System version was released in Europe on October 1992. The Game Gear version was released first in Europe in October 1992, and in North America and Japan in the following month.

source: Sonic the Hedgehog
text: Sonic the Hedgehog Sonic the Hedgehog (Japanese: ソニック・ザ・ヘッジホッグ , Hepburn: Sonikku za Hejjihoggu ) is a video game franchise created and produced by Sega. The franchise centers on a series of speed-based platform games. The protagonist of the series is an anthropomorphic blue hedgehog named Sonic, whose peaceful life is often interrupted by the series' main antagonist, Doctor Eggman. Typically, Sonic—usually along with some of his friends, such as Tails, Amy, and Knuckles—must stop Eggman and foil any plans of world domination. The first game in the series, released in 1991, was conceived by Sega's Sonic Team division after Sega requested a mascot character. The title was a success, it spawned many sequels, and it transformed Sega into a leading video game company during the 16-bit era in the early to mid 1990s.

source: Shadow the Hedgehog
text: Shadow the Hedgehog Shadow the Hedgehog (シャドウ・ザ・ヘッジホッグ , Shadō za Hejjihoggu ) is a fictional character in Sega's "Sonic the Hedgehog" series. He is an artificially created black and red hedgehog whose hover shoes propel him at extreme speeds that rival those of Sonic. He can also use the Chaos Emeralds to manipulate time and space through a technique called "Chaos Control". The character first appeared in "Sonic Adventure 2", where he was depicted as a villain and later an antihero, suffering from a tragic backstory; occasionally, he becomes an ally to Sonic and his friends, but remains at odds with them due to their differing moral compasses.

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Answer: Sega