Aquabble Quest

Here is the story of Timmy Turtle. He was playing on the river bank. And everithing was wonderful. Clear water with pebbles, reed, dragonflies flying over. And suddenly he found himself alone in the unknown place. All was the same - shining in the sun river, pebbles on the water. But he wasn't happy anymore. Where're mom and pa?
Help brave little turtlet get home to his family by clearing aquabbles that block his path home.