As school lets out for summer break, Luso Clemens finds himself cleaning his school's library instead of enjoying fun in the sun. His fate, constructed only by recklessness, sees him absorbed in a dusty old book after he writes his name in it. A portal to the magical land of Ivalice thrusts him right into the heart of battle, and Luso has no choice but to join the ranks of Clan Gully. With a mysterious revgaji named Cid leading the clan, Luso quickly gets wrapped around twists and turns beyond his grasp. The quest to return home is strewn with conflicting feelings and tough decisions; turbulent times are aplenty. Familiar characters and familiar worlds may line the setting, but only Luso's fate may line the pages of the Grimoire.
Like previous releases, Final Fantasy Tactics A2 (FFTA2) utilizes a turn-based tactics mechanic outlined on a grid. Based on their speed statistic, units will take turns moving and attacking from fastest to slowest. If a unit does not move or attack, their next turn will come quicker. Each unit has limitations involving their move space, attack range and overall stat growth; most of which depends on the job and the base level. Battles take the form of quests issued at pubs located throughout the world. Examples include escort missions, item finding quests, field-clearing battles, etc. Most battles and quests usually involve depleting the enemy's HP down to zero. In addition to accepting quests, certain ones may have a time limit attached to them; plot-based quests exclude the limit.
Holding true to previous FFT games, FFTA2 uses a job system to supplement unit growth and abilities. With fifty-six jobs, from Warriors to Summoners, FFTA2 sports the biggest job tree in all the tactical spinoffs thus far. Mastering a job involves equipping a job-specific weapon and gaining enough ability points to learn attached abilities. When enough abilities are learned, new jobs will open up. Certain advanced jobs will require the completion of a sidequest; certain jobs are also exclusive to certain races as well.
Like FFTA before it, FFTA2 has a judge overlooking the battle and prohibiting certain actions such as the use of a magic type or use of a weapon type. New to the FFT series, are clan privileges. These allow specific stat boosts as long as the law is upheld, if any friendly unit breaks a law, the privilege is revoked and units with zero HP cannot be revived. Instead, KO'd units are sent to a temporary jail where they'll be released as soon as the battle ends.
As part of the Ivalice Alliance, The re-release of Final Fantasy tactics on the PSP saw, added connections to other games. One being a cameo by Luso Clemens. After Ramza bumps into him and helps him out, He joins claiming that he's looking for his friends.