Although it hasn't always hit the mark with every installment, Square Enix has consistently tried to keep things fresh with itsFinal Fantasy series.Many of the entries in the long-running JRPG franchise have innovated on the series’ existing gameplay formula without straying too far from its distinctive roots. Final Fantasy 4, for example, introduced the Active Time Battle system, which added a real-time combat element to liven up turn-based battles. Final Fantasy 10, meanwhile, featured the Conditional Turn-Based Battle system, which replaced the traditional round-based combat formula in prior Final Fantasygames with a new gameplay mechanic that used speed to determine the number of turns that combatants could take.