Pikmin 4 rock onion location guide, how to get more rock pikmin (black onion)
Pikmin 4 Blue Onion Location: How to Get the Blue Onion Early in Sun-Speckled Terrace - GameRevolution
Pikmin 4: All Onion Upgrade & Flarlic Locations
Pikmin 4: All Onion Locations - KeenGamer
Pikmin 4 - How to Get Yellow Onion (Sun-Speckled Terrace) - SAMURAI GAMERS
In Pikmin 4 caves you find pale onions to merge and upgrade the master onion (+ more leaked screenshots) : r/Pikmin
Pikmin 4 Pink Onion location
Pikmin 4: all onion locations
Pikmin 4 winged onion location, how to get more winged pikmin (pink onion guide)
Pikmin 4 Purple Onion location