Reactoonz 2 is a highly volatile grid slot from Play'n GO, a sequel to the popular Reactoonz, featuring quirky alien creatures on a 7x7 grid. Wins are formed by clusters of five or more matching symbols, which then explode to trigger cascading reactions. The game introduces Fluctoon wilds, Energoon wilds, and the Gargantoon feature, along with Quantumeter charging for massive wild additions and potential payouts.