ur finger down blocks enemy attacks, and tapping another character's portrait calls him or her to battle.
As you play and destroy enemies, you can unlock new characters to join your adventure. In fact, you can even count on help from other players, who can 'lend' you some of their characters to fight on your side during a battle.
SWORD ART ONLINE: Memory Defrag is an action JRPG that comes with outstanding graphics and, without a doubt, is sure to please fans of this popular anime. That said, it's also a great game for anyone interested in getting to know the world of Sword Art Online.