The Alien Ceremony is a treasure found in Hey! Pikmin. It is an NES cartridge for Balloon Fight.
Collecting the treasure
After the Altitudinal Unlimiter, there are two doorways, aligned vertically. Enter the one at the bottom, and head to the left of the room on the other side. Use your jetpack to fly over the hole full of poison, and throw your Winged Pikmin (you need 14 of them) to retrieve the treasure. Then, go back and climb up to take the treasure, which is worth × 400. Finally, exit the room by going through the upper doorway.
Hey! Pikmin logs
“Part of the scene depicted on this chronicle is familiar to anyone: three champions, having finished well at their chosen sport, take their places to receive their just rewards. What I don't understand is who they were or what they were competing in. They seem to have large, bulbous eyes, like some of the creatures here. Even stranger, the third prizewinner is missing for some unguessable reason...”
Names in other languages