Aqua Pirates are Flying Pirates with armor retrofitted for underwater use. They are armed with rockets and beam weapons, and like Flying Pirates, if their armor is damaged to the point of failure, Aqua Pirates will attempt to ram their targets before the jet packs explode. Samus can easily target Aqua Pirates at a distance with use of the Thermal Visor.
- "Space Pirates with exoskeletons modified for underwater use. Using modified thruster-packs and Gravity Suit technology, the Space Pirates have armorsuits for use in liquid environments. Thermal tracking is still very useful against these units, as the Pirate engineers have yet to eliminate the thruster-pack's high heat signature." — Logbook "Aqua Pirate" (Metroid Prime)