MightyMind Aquarium Adventure Ages: 5 yrs+ Brings a new dimension of fun and exploration to stimulate a child's imagination MightyMind Aquarium Adventure extends the award winning MightyMind series using a unique proportional MightyMind Design Tiles and a progressive series of challenging puzzles A child builds a variety of underwater scenes that develop the important and necessary skills every child needs It keeps kids busy for hours! THE ONLY ACTIVITY TOY IN THE ENTIRE WORLD THAT SHOWS A CHILD STEP-BY-STEP HOW TO BUILD AND SOLVE PUZZLES.