The Legend of Zelda: Phantom Hourglass Cheats

Infinite Rupees
Here's an easy way to get as many rupees as you desire. While sailing the seas, you may from time to time encounter jellyfish-like creatures. When these are encountered, the ship should be stopped (though they will follow the ship even if you don't stop). Shoot these foes with the cannon (the cheapest cannon for your craft will only cost 50 rupees). When they are killed, they will drop a green rupee. Since they split apart when shot, you will be able to get multiple rupees per creature. Keep riding your ship around finding more of these creatures, and you can accumulate a good amount of rupees, as many as you'd like.

Fast Rupees
If you haven't yet challenged Jolene to a final duel, go and find her. Battle her a couple of times. You will be rewarded with a large red rupee (worth 200 rupees) each time you do. This is especially useful for buying all of the 1,000 rupee items at Beedle's and the Island Shops.

Acquire Fire Sword
To acquire the Fire Sword, get ten Fairies. Then, head to the Fairy Princess near the Sun Temple, where you will receive the sword.

Ship Parts
To grab new parts for your ship, you must fight the character on the ship The Prince of the Red Lion. If in the time given you manage to get 200 or more hits on the foe, he will give you a ship part. You can do this over and over again for new parts.

Your Doppelganger
Climb aboard the ship called The Prince of the Red Lion, where a character suspiciously similar to Link can be found. You can fight him if you want, over and over again. Earning a certain amount of hits on him will net you new items. For instance, scoring under 100 hits in the time allotted will net you an item like a Pearl Necklace, or a Princess Crown. More than 100 hits will get you a better item, like a Heart Container.

Salvaging Ship Parts
To attempt this, you must have a Cannon and a Salvage Arm on your ship. Head to the southwest section of the map, near Mercay Island. From here, you'll want to head towards Goron Island, where the pirates seem to congregate. You can destroy the pirate vessels with your Cannon, and then use your Salvage Arm to take random parts from their sinking ship. You can do this over and over again, grabbing parts like this instead of purchasing them with your hard-earned Rupees.

Golden Ship Parts
If you manage to become a VIP Member of Beedle's Shop, you will get 40% off of all of his merchandise. Occasionally, he'll have golden ship parts available, which will be much more affordable than usual with a 40% discount.

Easter Egg: Animal Crossing Reference
If you've played Animal Crossing: Wild World, then you'll recognize a reference in Phantom Hourglass. When you first meet the Postman, you and he will talk for a moment. He'll ask you that you try not to shoot him with the slingshot out of the air. This is in reference to Pete the Postman in AC:WW, who suffers a similar fate that the Postman in PH is trying to avoid!

Easter Egg: Chicken Swarm
If you corner a chicken or a group of chickens and begin to hack away at them, they will begin to turn red. When they've taken enough damage, they will attack you! A classic Zelda Easter Egg!

Easter Egg: Nintendo DS Island
If you head to the southwest part of the map, you will find an island that looks suspiciously like a Nintendo DS. The name of the island will reflect this as well.