This is a very simple game if you know how to play.

When you begin go forward without getting the Dubloon. Doing this makes the boat go faster.

Then go get the Dubloon, then another. Take the longest route everytime avoiding the Heat Activated Bombs.

Every two Dubloons, get in the middle of the bombs and wait for them to approach you. When they get closer you move forward making them go an extra distance in which they get closer, and closer to each making themselves explode on contact.

Do this every two and see how for you get.