Sonic Battle Overdrive

Sonic Battle Overdrive (ソニックロックンランブルSonikkurokkunranburu, lit. Sonic Rock 'n Rumble in Japan), known as Sonic Battle 2 in Europe, is the sequal to Sonic Battle. Exclusive for the Nintendo 3DS.

Gameplay
Sonic Rock 'n Rumble is the same, but with tweeked gameplay.

This game introduces the Switch feature where you can switch to (or with) any teammate. The hubs are changed, expecially the Main Menu. The "Status" feature is added to the Touch Screen, you can battle your friends locally and online, the options menu has changed as well as other modes, and Challenge Mode has changed to Arcade Mode!

Characters

 * Sonic
 * Tails
 * Knuckles
 * Amy
 * Cream
 * Shadow
 * Rouge
 * Silver
 * Blaze
 * Espio
 * Charmy
 * Vector
 * Osnic/ Neo Osnic
 * Chaos Gamma (default in Japanese version)
 * E-123 Omega (default in Japanese version)
 * Chaos 0 (default in Japanese version)
 * T-Rex (have to unlock)
 * Darkspine Sonic (have to unlock)
 * Excalibur Sonic (have to unlock)
 * Pursuit (unlocked by beating the game and triggering the Secret Ending, then beating him at Central City)
 * Zemerl - The fusion of Gemerl and Emerl's soul inside the Chaos Shard. It resembles heavily to Emerl, but kept a few designs on his head.

Game Modes

 * Story Mode
 * Arcade Mode
 * Trial Mode
 * VS
 * Nintendo WFC
 * Tutorial
 * Training
 * Battle Rankings
 * Extras
 * Options

Trivia

 * Zemerl's name was originally intended to be called Xemerl with the first letter resembling Sonic X, but because of the show's poor critisism by the fans, it was later changed to Zemerl (with the first letter similar to Dragon Ball Z!).