In this underwater world, players guide a small fish as it swims through a colorful ocean. The game's objective is fixed at the device screen that holds the score, though freestimulation is never shown because it remains unknown.
The player controls a tiny fish that must eat other fish by swimming towards and consuming them. Other fish are too roaming around, and not only food to in-game characters. They must avoid the player's fish and the player's fish must evade them to survive. The game can be played in a web browser without any software requirements, eliminating the need for downloads or installs.