Beginner's Boulder

The first dungeon in Pikmin: The Mystery Potion, it has many weaker enemies, but the fifth time you enter, a new enemy appears, and it is very, very strong.

F1
1x Dwarf Pufferspine

3x Dwarf Red Bulborb

F2
5x Dwarf Red Bulborb

1x Orange Bulborb ( After fifth time entering dungeon)

Spoliotoniumite Bottles
There are two, each one if found by deafeating all enemies on that specific floor.