To get all the stars, you must throw twenty crates of tea overboard. You will not have enough time to do this by just throwing the crates that slide past. You also need to capsize the red coats that paddle near. If you hit a redcoat with a crate, you will score points according to the number of crates on his boat. However, aiming the crates can prove difficult. You must toss the crate with the appropriate amount of power to hit the redcoats.