Wonder Egg

The Wonder Egg is an item found at the end of Surrounded Sea along with 3 es. It goes into the Treasure Bag until the player leaves the dungeon. The next morning, the Wonder Egg hatches into a, and the Wonder Egg cannot be collected again.

If a replay cheat is used to get Manaphy early the Wonder Egg will not hatch no matter how long the player leaves it.

In other languages
Wunder-Ei ふしぎなタマゴ (ダンジョン)