The game is implemented in two-dimensional space: there is a possibility of free movement in a single plane horizontally, vertically and diagonally. Enemies attacking the main character , like all dolphins, ramming them at high speed. Increasing speed is produced by frequent pressing the corresponding buttons, and to maintain the speed at one level, holding her. Also possible a sharp jerk by using another button. The main character can communicate with other creatures of the underwater world, through song (sonar).
Two features of the game were the result of the specificity of the main character. The first is an acoustic map that can be called song of the hero. Holding the a button, you need to wait until the song returns to the main character — a kind of imitation of real echolocation of dolphins. The second feature is the need to replenish the supply of oxygen (required by all mammals) that is expressed in the constant need to ascend or to search for air pockets. For indication o
