Heroes of the Seven Seas

Page Level Select: "From Navy's Outpost"
Number of enemies to defeat at sea: 2 enemy ships; however, you only have 5 minutes to defeat them.

Make sure during "The Devil's Luck", you get the two upgrades for the Mast and Cannons. These upgrades make them Level 2 each and enable you to both take and deal more damage. Once you have the upgrades, you can leave The Devil's Luck by interacting with the anchor icon, so you can go back to the sea.

For this trophy to unlock, you'll need to defeat all the enemies on the way to the Navy Outpost to get the navy's flag. Not only that but once the level begins you're given a new upgrade that enables you to press to fire Mortars. The Mortars are very weak, but they can help you deal with enemies from a safe distance. This area only has two enemy ships that you need to destroy for the trophy to unlock; however, you must defeat these enemies within 5 minutes or you will have to restart the level. You can even fight both enemy ships at the same time - you'll kill them faster than they can kill you since your ship's abilities have been greatly upgraded. Once both enemy ships have been destroyed, the trophy will unlock.