It's a beautiful day on the island, and the turtles want to frolic on the warm beach rather than in the cold water, but the island doesn't have room for everyone.
In Turtle Mania, players want to help create a space on the island for the turtles as they arrive, but to do this, they need to push other turtles aside. On a turn, you have to push a turtle from a pier onto the beach, ideally without any other turtles falling into the water because if they do, you have to keep them as punishment, tending to their needs.
If you knock a yellow turtle into the water, you must take a turn again immediately. If you have collected three turtles of the same color or seven turtles total, then the game ends and you are out. Whoever has collected the fewest turtles aside from you wins.