Manaphy

Manaphy is a Water-type Generation IV Legendary Pokémon. It first appears as a hidden Pokémon in the game Pokémon Ranger, and also debuts in the film, Pokémon Ranger and the Temple of the Sea. Manaphy is the only Pokémon that can hatch from a Pokémon Egg, more specifically the Manaphy Egg. Manaphy can lay a single Pokémon egg containing Phione. Despite this, Phione is not the base form of Manaphy and cannot evolve into it. Manaphy's ability is Hydration, which eliminates any of its status effects while it is raining.

Manaphy can learn a number of Psychic-type attacks, and its signature move is Heart Swap. Despite this, Manaphy does not have Psychic as one of its types. All of Manaphy's base stats are at 100, similar to Mew, Celebi, Jirachi, and Shaymin.

Pokémon Ranger
In Pokémon Ranger, Manaphy only appears as a Pokémon Egg. To unlock it, the player must clear the game and Ranger Net mode. From the Ranger Net menu, the player must hold R, X, and Left to unlock a password option, where the player must enter the code "P8M2-9D6F-43H7." They must then clear the "Recover the Precious Egg!" mission to rescue the Manaphy egg. The egg cannot hatch, and can only do so if sent to Pokémon Diamond or Pokémon Pearl.

Pokémon Diamond and Pearl Versions
In Pokémon Diamond and Pearl Versions, besides trading, Manaphy can only be obtained by obtaining its egg through wireless trading from Pokémon Ranger. After doing this, the player character can visit a Poké Mart to receive the Manaphy Egg from a delivery man. Phione itself can only be obtained by breeding a Ditto with a Manaphy.

Manaphy is the last Pokémon listed in the Sinnoh Pokédex.

Pokémon Ranger and the Temple of the Sea
Manaphy starts in the ninth Pokémon movie, Pokémon Ranger and the Temple of the Sea, where it is voiced by Yuri Shiratori. In it, Manaphy can use its "feelers" to use Heart Swap and switch people's bodies, and it does so to the minds of Ash and Jackie.

Physical appearance and traits
Manaphy is a blue blob-like Pokémon, likely based on the sea angel. It has two long antennae extending from atop its head. At the end of these antennae are round objects that resemble a ball. Its eyes are large and yellow and its head is quite large in proportion to its small body. It has two yellow circles that resemble eyelashes extending up from the eyes. These also appear to be very similar to the chemical structure of the water molecule H2O, perhaps another reference to its highly aquatic nature. It also has jewel-like markings on its stomach, one large red gem and a very small yellow gem. Its arms are also large in comparison to its bodies and are shaped much like a whale's fins.

Manaphy are said to live in cold waters, and migrate miles away from their homes only to return. Manaphy are highly influenced by their environment; their bodies are eighty percent water. Manaphy are very intelligent. They apparently can learn to speak human tongue, as the Manaphy in Pokémon Ranger and the Temple of the Sea was able to say "happy", "love you", "May", and "mama" after hearing those words from May.

Reveal
Manaphy was the sixth Generation IV Pokémon to be revealed by CoroCoro magazine. It was revealed alongside the silhouettes of three other Pokémon: the first one being Mantyke, then Buizel, and Chatot.

Beginning on Wednesday, December 6, 2006, Manaphy's egg made mysterious appearances on Pokémon.com; the words "December 15 2006" and "Check our Pokémon Ranger mini-site" appeared in a picture along with a Manaphy egg. If the advertisement was clicked, it would lead to a page involving Manaphy, advising to keep checking up through the month to receive the code to obtain the egg, implying that Manaphy would be obtainable via this code and not a special event. When the month ended, no code had been made available. On January 5, 2007, Pokémon.com revealed that there would soon after be more information on Manaphy.

On January 9, 2007, it was revealed that parts of the special code to unlock Manaphy would be released throughout the week, and the final part was revealed on January 20, 2007. This statement was false, as the entire code was revealed on January 20.

The UK Manaphy code was released on June 2, 2007. Those that wanted the code had to go to their local GAME store along with a completed copy of Pokémon Ranger and a Nintendo DS to receive a boxed chocolate egg containing the code on a slip of paper. Some GAME stores also offered a free poster along with the egg and a special pre-order booklet for Pokémon Diamond and Pearl Versions.