The aquari tournament holds a huge custom game native to the Waterzoid’s, Waterzoids are human-like creatures that have human features but fish-like gills and faster swim ability, and hydro-manner powers, The game is called "Zaœ Tönäs", a family of players compete inside a pool or somewhere containing a river of water. and they use their powers to splash eachother until one is out of energy, or knocked out, or even killed… it became illegal to the waterzoids, but was temporarily permitted.