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 late 2000 by Imagineer in Japan, and 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.

Imagineer commissioned a sequel to Wetrix following the predecessor's critical and commercial success. It was released in 2000 in Europe, North America and Japan as the third PlayStation 2 puzzle game after Fantavision and Super Bust-A-Move, selling 70,000+ copies in the West and 15,000+ in Japan. Aqua Aqua was generally well-received by professional critics for its addictiveness, graphics and sound. Criticism was targeted at the steep learning curve, the short length of the Story mode, the fixed camera and loose controls causing imprecise piece placements, and how little advantage was taken with the console's hardware.