Green Hole

It is one of the challege stages in Pikmin 2. You start with ten red, ten blue, and ten yellow. There are also 20 bulbmin, you have to kill there parents and use the wistle on them. They join you for the rest of the cave, in story mode bulbmin can't go above ground, only under. The first floor has the 2 bulbmin parents, 20 baby bulbmin, treasures, and lots of eggs, so your pikmin can have flowers. The second floor has lots of bulborbs, including fire, you need your red and bulbmin to kill it. You start out with one bitter and one sour spary in this stage.Your pikmin, and bulbmin need to hit the gyser to get it started. To activate the next floor find the key, carry it to the ship, then it will make a hole or a gyser