Drag a wave baton through—not tap—bubble beat marks on a coral stage to align fish schools. Clean passes raise formation integrity; misses or reverse strokes scatter the school. Big and small bubbles mark note values while current pulses resize the grid. End-of-piece peak integrity scores the round; a flawless long phrase earns a tide-phrase bonus. Regroup quickly after scatter. Difficulty rises with pulse shifts and dense syncopation.
Undersea ballet conduct: drag the wave baton through bubble beats for formation.