H2OMG is a fast-paced, simple card game about sneak attacks, soaking your friends, and revenge in last-man-standing a water battle. Player have a four-card hand they use to deploy various attacks, such as balloons, buckets, and squirt guns. Each type of attack requires a different number of water cards. The most devastating attacks are also the most work to pull off. The last player to sustain 15 points of soak damage the round. The first player to win three rounds wins the game. Rounds last about 5-10 minutes.