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Resonance Attacks are the signature finishers of Final Fantasy Resonance: vision-specific ultimates that cap the bonus phase after a sweeping stagger. The game takes its title from them, and the producer said the word resonance runs through the story as much as the battle system.
Trigger Conditions
A Resonance becomes available only after a sweeping stagger, the state reached when every enemy on the field has been staggered. At the end of the resulting bonus phase, one character can unleash the Resonance of their equipped Vision. Only one Resonance can be used per sweeping stagger, so choosing which character fires is part of the strategy. There is no resource cost: once the conditions are met, the move is free. And because the trigger is tied to staggering rather than to a meter that charges over time, how often Resonances fire depends on how well the party engineers sweeping staggers.
Effects and Variety
Resonances are not all about damage. Forms include heavy single-target hits, attacks that strike every enemy, buffs, and heals. Leah's Resonance, Healing Wind, restores the whole party. In preview builds it could still be fired even when the enemies fell before the bonus phase played out, which made it a dependable way to top off HP and conserve healing items between fights.
In preview builds, the combination of extra actions and the Resonance payoff made staggering valuable in routine fights and boss battles alike, since a well-timed Resonance can swing a fight or refill the party at no cost.
Presentation
Every Resonance comes with a cinematic sequence unique to its vision. For the legacy Final Fantasy heroes, the sequences use the characters' 3D models, with CG assets from the original mobile game reworked for this release, and the battle jumps from the pixel-art field into full 3D for the duration of the move.
In preview builds, the Resonances of Warrior of Light, Terra, and Cloud were shown, along with a backdrop switch that plays when a Resonance fires. Cloud's runs as a rapid series of slashes cutting between 3D footage and pixel art.
The Name
The producer said resonance was chosen as the title because it works as a keyword on every level: the party grows stronger by resonating with the crystallized visions of heroes, the ultimate technique carries the name inside the battle system, and the word returns around the game's ending.