Toaru Majutsu no Index Struggle Battle

Toaru Majutsu no Index Struggle Battle (とある魔術の禁書目録（インデックス）頂点決戦（ストラグルバトル）) is an upcoming mobile phone game by Mobage, which was released on December 25, 2012.

Promotion
The game was silently announced by Dengeki on October 7, 2012, 3 days before the release of the 5th Shinyaku Toaru Majutsu no Index light novel volume, and amidst news regarding Toaru Majutsu to Kagaku no Ensemble and the Toaru Majutsu no Index Movie.

On November 22, 2012, advanced registration of the game has opened, and those who have registered early will get a chance to attain a limited Misaka Misuzu card.

On December 21, 2012, the game becomes open for the public and rare Christmas-themed cards are shown, as well super rare cards announced to be revealed on December 29.

Gameplay
Although, not much is known, the game is apparently a social game with the motif of collecting the abilities of the characters from the series, with the aim of becoming the strongest in Academy City. The user can play the game against other people through the use of cards of the characters.

The cards are either normal typed or rare, which have varying degrees of tiers to them, such as Rare cards having a plus sign next to them. The illustrations of the cards are taken directly from screenshots of characters that are from both seasons of the Toaru Majutsu no Index anime adaptation that are vectorized, or from promotional art drawn in the same way as the rest of the illustrations, as with the case of the Mikoto and Index Christmas-themed cards. The game also reuses the sprites from the Toaru Majutsu no Index PSP game.

Story
The story is currently unknown, but it is an original written by Kamachi Kazuma.