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 as it's prequal, but with upgraded and updated gameplay.

The Touch Screen allows the player to see the current Vitality and Special Gauge of its teammate(s). The Touch Screen also shows a Special Move that can be performed while on a certain level of the Special Gauge, which is 2, 6 for Zemerl (the first 5 are 10% each).

On level 0 the player can perform a Lvl 1 Special Move (Zemerl can only perform this with a cost per bar), on level 1 the player can perform a Super Special, finally, on level 3, the player can perform either a Team Special, which requires 1 or 2 teammate(s) to activate, or activate Super Form (only if no teammates are present). Both the Super Special and the Team Special requires making contact with a foe (or also rush into them) in order for it to activate. Zemerl, unfortunately, is unable to use a Super form (excluding Omega Zemerl who is exclusively a final boss, though as the enemy) or participate in any kind of Team Special and can only use his own Super Special, which is Finale (though during his Omega form his Super Special is turned to Omega Finale, which is stronger than a Team Special since it can cause an imitiate Game Over in 1 hit).

The game also introduces the ability to go head-to-head wirelessly or on the internet. Like Mario Kart Wii/7, chosen (or voted) stages will be selected randomly.

Default

 * Sonic
 * Tails
 * Knuckles
 * Amy
 * Cream [w/ Cheese]
 * Shadow
 * Rouge
 * Silver
 * Blaze
 * Espio
 * Charmy
 * Vector
 * 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.

Unlockable
"*" = Can't copy actions, attacks, etc. into Data Cards.
 * Chaos Gamma (obtain a score of 10000 in Arcade Mode; default in Japanese version)
 * E-123 Omega ( obtain a score of 20000 in Arcade Mode; default in Japanese version)
 * Chaos 0 ( obtain a score of 25000 in Arcade Mode; default in Japanese version)
 * Osnic* (unlocked by beating him in any round while in Hard difficulty )
 * Normal T-Rex / Dragon T-Rex* ( unlocked by beating him in any round while in Hard difficulty )
 * Pursuit* (unlocked by beating the game and triggering the Secret Ending, then beating him at Central City)
 * Tome* (unlocked by summoning him through the Master Emerald at the Chao Shrine, then beating him )

Forms

 * Sonic
 * Super Sonic (simply collect all 7 Chaos Emeralds)
 * Darkspine Sonic* ( unlocked by beating him in any round while in Critical difficulty , but not before beating the game)
 * Excalibur Sonic* ( unlocked by beating him in any round while in Critical difficulty, but not before beating the game  )
 * True Deeth (Death) Sonic (unlocked by beating the game, then challenge Chaos Gamma as Zemerl in a 30-KO Battle to obtain the Flame Emerald... But you only have 1 life)
 * Shadow
 * Super Shadow (simply collect all 7 Chaos Emeralds)
 * Silver
 * Super Silver (simply collect all 7 Chaos Emeralds)
 * Osnic / Neo Osnic
 * Super Osnic (simply collect all 7 Chaos Emeralds)
 * Ultra Osnic (win every round in Super Mode (Super form) while in Critical difficulty, but not before unlocking Super Osnic)
 * Pursuit
 * Pursuit: Dragon Mode
 * Pursuit: Beast Mode
 * Pursuit: Weapon Mode

Game Modes

 * Story Mode
 * Arcade Mode
 * Trial Mode
 * Local VS
 * Online VS
 * Tutorial
 * Training
 * Rankings
 * Extras
 * Options

Controls

 * L Button - Guard
 * R Button - Recover & Charge
 * Circle Pad - Move around
 * D-Pad
 * Left - Use 1st (set) Special Move
 * Right - Use 2nd (set) Special Move
 * Up - Use (set) Super Special
 * Down - Use (set) Team Special or enter Super Mode

Sonic Battle Overdrive: Deluxe Pack
Sonic Battle Overdrive: Deluxe Pack is a package consisting of a DVD/Blu-ray + DVD (depending on the package bought), 2 soundtracks from both the game, the 3D CGI movie, Sonic Big's Break, and the game itself (respectively). This is available as a pre-order bonus.

Other Info

 * Rating: CERO: A (All Ages), ESRB: E or E10+, PEGI: 7+
 * Developed by: Sonic Team Japan, Sonic Team USA.
 * Published by: Sega, Capcom (only shown in-game before the opening)
 * System(s): Nintendo 3DS

Trivia

 * Zemerl's name was originally intended to be called Xemerl with the first letter resembling/based on Sonic X, but because of the show's poor critisism by the fans (and possibly the official reviewers), it was later changed to Zemerl (with the first letter similar to Dragon Ball Z!).
 * Challenge Mode has been changed to Arcade Mode, with differed mechanics as well.