page_title: Sonic Chaos
section_title: Development
hierarchical_section_title: Sonic Chaos / Development
caption_attribution_description: English: The Game Gear, a handheld video game system created by Sega and first released in 1990.
context_page_description: Sonic the Hedgehog Chaos is a 1993 side-scrolling platform video game published by Sega for the Master System and Game Gear. Players control Sonic the Hedgehog and his sidekick Miles "Tails" Prower in their quest to retrieve the Chaos Emeralds from Dr. Robotnik, who has stolen them to construct nuclear weapons. Gameplay involves running through stages, collecting rings, and defeating enemies. It is largely based on the Master System version of Sonic the Hedgehog 2, and is thus considered a follow-up to that game. Chaos also marks the debut of Tails as a playable character on the Game Gear.
  Developed by Japanese studio Aspect Co., Chaos is the first original Sonic game made for a handheld, instead of a port or remake of an already-existing game. Based on their prior experience on producing Sonic games, Aspect had a far better grasp on how to design Chaos, and were able to build on its predecessors mechanics and make the gameplay generally faster.
context_section_description: Sonic Chaos was developed by Japanese studio Aspect Co., being the third Sonic the Hedgehog game they produced, and published by Sega for the Master System and Game Gear. Chaos is largely based on the Master System version of  Sonic the Hedgehog 2, and is thus considered a follow-up or successor to that game. With Aspect's prior experience on producing Sonic games, they had a better idea on how to design Chaos, and thus were able to greatly expand upon its predecessors in both design and visuals. For the same reason, they were also able to make the game run faster. Chaos is both the first original Sonic game for a handheld system, and the first to feature Tails as a unique playable character.
  Sonic Chaos was released for the Master System on October 25, 1993, and for the Game Gear a month later to coincide with the release of Sonic CD. In Japan, it was renamed to Sonic & Tails. Chaos is included as an extra in the GameCube version of Sonic Adventure DX: Director's Cut (2003) as one of the eleven unlockable Sonic Game Gear games, and in Sonic Mega Collection Plus (2005) for the PlayStation 2, Xbox, and PC. In 2009, it was digitally-released for the Wii Virtual Console in North America.
caption: Chaos was the first original Sonic game produced for a handheld, in this case the Game Gear.
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