Vault

Vaults are small but important areas in Pikmin: Neo. They are underground areas resembling some sort of machine with the surroundings seething with energy and strange markings. These vaults are important due to housing the DNA of all types of Pikmin. When interacting with these vaults launch seeds into the air which quickly sprout into Candypop buds which allow one to convert their Pikmin into the Pikmin this vault represents. This is a required process as soon after collecting your first of the newly collected Pikmin species a puzzle that can only be completed by that type appears requiring one to take advantage of this new type to proceed. After the puzzle is completed the seeds of the Candypop buds disperse around the map and a counter appears on top of the vault for the number 25. By having 25 Pikmin head back to the vault you first discovered them in, they will fuse together into a single Onion allowing one to infinitely harvest that species without the need for hunting for Candypop buds. While not required to complete the game, using the vaults is required for 100% completion as you need to have all Pikmin types if you wish to collect everything.