Aqua Aqua is a puzzle video game developed by Zed Two, the studio of Ste and John Pickford, for the PlayStation 2. It was published in July 2000 by Imagineer in Japan, and in late 2000 by The 3DO Company in North America and SCi Games in Europe. It is the sequel to Wetrix (1998) and has very similar gameplay; the player, on a landscape, uses Uppers to create walls for enclosures that hold flying water bubbles, contending with hazards like rainstorms, bombs, and ice cubes in the process.