Crescent Unit Aqua is an enemy from Crisis Core -Final Fantasy VII-.
Crescent Unit Aqua, much like every other Crescent Unit enemy, has low Spirit, meaning magic attacks are highly effective on them. They can also be easily interrupted with regular attacks, making them not that big of a threat. However, when in groups of other enemies, be wary of this enemy's actions as it can knock the player to the ground.
Aqua is Latin for "water".