SNK Playmore has released free content for THE KING OF FIGHTERS-i on iOS devices. Characters "Iori Yagami", "Mature", "Vice", "ElisabethBranctorche", "ShenWoo", and "DuoLon" join the original cast of 14 in the game for a total of 20 fighters. In addition to the new characters, a new challenge mode has been added to the game along with more trading cards and illustrations for Gallery Mode.

To celebrate the release of the upgrade, THE KING OF FIGHTERS-i will be available for $4.99 from September 9th - 16th.

The game is compatible with iPhone 3GS (iOS4.1 and later), iPhone 4, and iPod touch (3rd generation and later). Find out more here