Dive down, scrub the gloom away, and bring back the ocean's glow.
Turn on your controllers and press Ⓐ to join
On a computer, two can share the keyboard. Left: WASD to swim, Space swing, Q dash, E wand power, F change wand. Right: arrows, Enter swing, right Shift dash, / power, . change wand. Hold swing to charge a spin. On a phone or tablet, tap a player.
Press H (or Start on a controller) to open and close this. Controllers join with any button.