Sonic Battle

Sonic Battle is a fighting video game developed by Sonic Team for the Game Boy Advance. It was published by Sega in Japan and THQ in North America and Europe. It is the second fighting game in the Sonic the Hedgehog series, the first game being Sonic the Fighters. It is the sequel to 2002's Sonic Advance 2 and was released in Japan in December 2003 and in North America and Europe in early 2004.

Story: While studying the diary of his grandfather, Professor Gerald Robotnik, Dr. Eggman learns of an artifact Gerald had unearthed: a 4000-year-old sentient weapon called the Gizoid created by an ancient civilization. Eggman attempts to get the dormant Gizoid to work properly but is unsuccessful and abandons it at Emerald Beach. Sonic the Hedgehog finds the Gizoid, which activates and develops a link with him after Sonic demonstrates his abilities.