Orbital Communication Sphere

The Orbital Communication Sphere is a treasure in. It can be found in the Blossoming Arcadia, Serene Shores, and Cavern for a King. It is a with the word "MARUFUKU" written on it in black, and a "1" written in red below.

Blossoming Arcadia
There is an Orbital Communication Sphere inside of a dirt mound on the far eastern side of the overworld. To collect this treasure, you must throw 5 Pikmin at it. For ease of mind, the nearby Creeping Chrysanthemum should be defeated.

Serene Shores
There is an Orbital Communication Sphere hidden in a patch of grass on the sand on the central western section of the overworld, in a small lake. It is submerged during high tide, and is guarded by two Water Dumples. To collect it, you must throw 5 Blue Pikmin at it during high tide, or 5 Pikmin at it during low tide.

Cavern for a King
There are three Orbital Communication Spheres inside of an Arctic Cannon Beetle at the southern edge of sublevel 4. To collect this treasure, you must first defeat the Arctic Cannon Beetle. Then, throw 5 Pikmin at each treasure.