Sonic the Hedgehog (ソニック・ザ・ヘッジホッグ) is a video game franchise created by Yuji Naka, and is developed and owned by Sega. The franchise centers on a series of speed-based platform games, but several are spin-offs in different genres. The protagonist of the series is an anthropomorphic blue hedgehog named Sonic, whose peaceful life is often interrupted by the series's 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, published in 1991, was conceived by Sega's Sonic Team division after Sega requested a mascot character; the title was a success and spawned sequels, and transformed Sega into a leading video game company during the 16-bit era in the early to mid-1990s.
Sonic Team has since developed many titles in the franchise. Prominent members of its initial staff included Naka, character designer Naoto Ohshima, and level designer Hirokazu Yasuhara. Other developers of Sonic games have included Japanese Dimps, American Sega Technical Institute, Backbone Entertainment, Big Red Button Entertainment, and Sanzaru Games, Canadian BioWare, and British Sumo Digital and Traveller's Tales. While the first games in the series were side-scrolling platform games, the series has expanded into other genres such as action-adventure, fighting, racing, role-playing, and sports.
Relationship with the Monster Hunter Series
Sonic the Hedgehog made a collaboration with Monster Hunter.
Sonic the Hedgehog x MH4U
The collaboration was announced on September 18, 2014, and was simultaneously confirmed for Monster Hunter 4 Ultimate on the same day. It features a Sonic the Hedgehog-themed Guild Card Background, a Palico Armor Set fashioned after Sonic the Hedgehog, and a Palico Weapon fashioned after Caliburn.
|F Sonic Palico Armor / ソニックネコシリーズ|
|F Sonic Palico Armor|
|Title||モンスターハンター4G Direct 2014.10.8 プレゼンテーション映像|
by Nintendo 公式チャンネル
- Having close connections with Sega, Ryozo Tsujimoto and the company settled for Sonic the Hedgehog as a way to collaborate with Sega that would be recognizable for both the Japanese and Western versions of the game. Sonic, being popular both in Japan and overseas makes the most sense as a choice for the collaboration. 
- TGS 2014: Monster Hunter 4 Ultimate's Palicoes get a Sonic the Hedgehog armor
- Sonic the Hedgehog Article on Wikipedia
- Sonic News Network on Wikia