Good idea, 'transposition more than bad. From the market leader I would much, expect much more. Whether with or without liquid, with or without batteries, the boat has always extreme list and to get something from the boat, it flips around and the liquid runs out. Ever a lid at the filling spout for the liquid no child would be absolutely necessary because a boat to 100% just lifts out of the water and when it all comes down at a slight angle raises and in the water. The drive does not work through the inclined position also. The boat is with us now beside the pool and there makes soap bubbles. For the water it's just not appropriate.