Corrupt Crevice
From Pikmin Fanon
The second-to-last cave in Pikmin: Planetary Evolution, it is very, very unstable, and one bomb rock could bring the whole place down.
Floor 1
50x Shearwigs
Floor 2
Floor 3
15x Red Bulborbs
Floor 4
Boss: Dimensional Parasite
Treasure
A note is found, which speaks of a beast which has eaten a large, valuable treasure.