Sonic Battle
Sonic and his friends are getting ready for some brawling! Fight as one of nine characters, including Sonic, Tails and Shadow! Flatten them with special attacks and team-based attacks. Create and train battle partners for 2-on-2 battles. Duel with your friends in 4-player battles. This is the second fighting game in the Sonic the Hedgehog series, the first being Sonic the Fighters. It is also the first Sonic fighting game to be released on a handheld.
Story
Many years ago, a sentient weapon was created by an ancient civilization. After being lost for millennia, the weapon, known as the Gizoid, was unearthed and researched by Professor Gerald Robotnik. It lay dormant for another half century before being discovered by Gerald's grandson, Dr. Eggman, of all people. Frustrated that he couldn't get the sleeping Gizoid to work properly, Eggman dumped it on Emerald Beach, where it was found again, this time by Sonic the Hedgehog. Sonic calls the Gizoid "Emerl", who meddles in the affairs of Sonic's friends, both allies and rivals. Through his encounters with Sonic, Tails, Knuckles, Amy, Cream, Gamma, Rouge and Shadow, Emerl transforms from a soulless robot into a fun-loving mech with personality traits of all those he has met. But while the gang has fun raising their new mechanical friend, there are also those who recognize Emerl's true power. Now that Emerl is functioning again, Eggman has his eye on him, Rouge wants to turn him into a master thief, and Shadow finds that Emerl is still a weapon of mass destruction despite Sonic's efforts to humanize him.