Colorful pearls appear in the middle of the field. You control a shell that moves in a circle and must catch everything except the red ones - they remove your life, and when your life is gone, the round ends.
The gameplay boils down to quick reactions to timely movement, picking up the right pearls, and avoiding the red ones. The longer you hold out, the higher your score.
After completing a level, you choose one of the power-ups. Power-ups make collecting pearls easier and ease challenging moments.