Liquid Kids, known as Mizubaku Adventure (ミズバク大冒険 Mizubaku Adobenchā?, "Water Bomb Adventure") in Japanese, is an arcade game released by Taito in 1990.
The game's main character, Hipopo, makes an appearance as an assist character in Bubble Symphony. Hipopo and his girlfriend, Tamasun, would later appear in the console versions of Pop'n Pop.