Leviathan (Final Fantasy XV boss)

Leviathan is a fought as a boss in Final Fantasy XV during the Main Quest The Trial of Leviathan.

Battle
Leviathan moves very swiftly throughout the waters, often coming up in a fury to attack Noctis. She will also fire many water projectiles at Noctis, which are very fast and can deal damage if not avoided.

Initially, the battle leaves the player with little means of damaging Leviathan, and the player should focus on staying alive. This sequence is short lived, and ends after enough damage with warp-strikes is inflicted.

Strategy
During the first sequence, the player must simply point-warping throughout the platforms to survive and evade Leviathan's attacks. When given the opportunity, they should deal a little damage with warp-strikes, though they should keep in mind that the goal is not to damage Leviathan.

During the second sequence, Noctis can move throughout the air, and deals far more damage with the Armiger Arsenal. As such, the player should hold down the attack button whenever Leviathan comes up, move towards her and continuously lay into her, preferably locking onto her. Her water projectiles are fast, though they can be evaded if the player moves quickly and stays phased.

Finally, when Leviathan's health is depleted, the player should simply parry to defeat her.