You should monitor the indicators of your dolphin very carefully. If they go down, then you are doing something wrong. Give your dolphin as much attention as possible, bathe him, and feed the most delicious fish. And also decorate his house with different decorations, which will cheer him up. All this you can buy for pearls. If you run out of them, you can earn them with the help of mini-games, where you need to swim and jump over various obstacles.