This article is about the treasure. For the Pikmin nest, see Onion.
The Onion Replica (オニヨンモドキ?, lit.: "Pseudo Onion") is a treasure found in Pikmin 2. It is simply an onion. It can be found in the Perplexing Pool behind the landing site, and involves a complicated process to get it; one of the most complicated on-land treasures to get in the game. The Hocotate ship may have called it an "Onion Replica" referring to the fact that the Pikmin's vessels are also referenced by Olimar as Onions.
The following article or section contains guides. The strategies presented may not be the only ones or the best ones.
First a nearby black gate must be destroyed to get behind the landing site, then White Pikmin can be thrown over the edge on the secret path behind the ship. Using the other Leader to guide the Whites onto a small peninsula, and dismissing them on the tip will allow the Whites to detect a completely buried item and begin digging it up. Blue Pikmin will be needed to carry it across the water. To return the Whites to the ship one just has to throw them back over. Along the way Water Dumples and Yellow Wollywogs will attack Pikmin.
Notes
Olimar's journal
“This looks just like one of Hocotate's famous sweet onions! Come to think of it, I gave the Onion its name because it looked just like a Hocotate onion. To avoid confusion, I'll call this vegetable an Onion Replica.”
Sales pitch
“This plant closely resembles the pride and joy of Hocotate. The comfort of its familiar form and the surprise of its unexpected taste mingle to form... veggie harmony? Try it in some hot soup today!”