Portuguese man o' war
The Atlantic Portuguese man o' war lives at the surface of the ocean. The gas-filled bladder, or pneumatophore, remains at the surface, while the remainder is submerged. As the Portuguese man o' war has no means of propulsion, they move according to the winds, currents, and tides. Although they are most commonly found in the open ocean in tropical and subtropical regions, they have been found as far north as the Bay of Fundy, Cape Breton and the Hebrides.
Men of War (video game)
"Men of War" allows a player to directly control any soldier or manned vehicle/gun that he owns. Movement is controlled with four directional keys and a stance toggle, while the unit aims/faces toward the on-screen mouse cursor and fires when the player clicks his mouse button.