The Whimsical Radar (きまぐれなレーダー?, lit.: "Whimsical Radar") is one of the ship parts found in Pikmin. It is the only part that has another function besides helping the S.S. Dolphin run, as it allows the player to view a map of the current area to pinpoint Pikmin and other missing parts. In Pikmin 2, the radar is instead available from the start of the game. When the part is recollected, the ship part is installed at the back of the S.S. Dolphin. This is the only ship part whose collection makes the camera move during the cutscene to show its installation.
Collecting the part
This part is to the north of where the Yellow Onion is first found, past a stone gate. It is resting on a ledge that any Pikmin can reach. Destroy the gate using the nearby bomb-rocks, then defeat the Dwarf Bulborbs and Spotty Bulborb. Its sonar can be heard ringing as Olimar approaches it, so it is very easy to find. The Male and Female Sheargrubs nearby may pose a threat, so you might want to take them out.
You can also opt out of using more bomb rocks by going around behind your base into the area with the sheargrubs. After killing all harmful enemies, you can throw Pikmin onto the ledge and allow them to carry the Whimsical Radar back safely.
“It's my Whimsical Radar!
With this, I'll be able to see all nearby ship parts in a single glance—I just press Y to check it. This find fills me with great hope.
This important part can detect the locations of the other missing parts. The radar will be added to my monitor, which I can press Y to view. C zooms in and out. This will surely help me in my search for the remaining parts!”
Names in other languages