Waterfall Trench

Waterfall Trench is the eighteenth cave in Pikmin: The War of the Pikmin Planet. It is located behind the waterfall at Waterfall Lake.

Enemies

 * Digging Toxicrab x4

4 Toxicrabs have turned this area into a construction site. Watch for random holes in the ground.

Enemies

 * Volatile Dweevil x10
 * Careening Dirigibug x2

Explosives litter this entire sublevel, and the Dirigibugs don't help much. One of the bomb-rock carrying bugs has the key.

Enemies

 * Anode Beetle x64

There is a very large body of water in this sublevel. The Anode Beetles, however, electrify the entire lake when they shock each other. You must learn the timing of their attacks, and take cover on small islands. You have to wait 5 minutes before the hole appears.

Enemies

 * Hungry Mawcuda x3

Watch out for the Mawcudas on this sublevel. The hole is clogged, so you have to get your Blue Pikmin to it before they get eaten.

Sublevel 5
Rest Sublevel.

Enemies

 * Water Dumple x15
 * Blue Bulborb x3

This sublevel is very tall, and there is a waterfall in the middle. You have to climb down the small cliffs to reach the bottom. Along the way, Water Dumples and Blue Bulborbs block your path.

Enemies

 * Goolarva x7
 * Goolix

Defeat this Goolix quickly, and take its key.

Enemies

 * Black Pikmin x20

Just when you think that this is a rest sublevel, Black Pikmin show up and attack your Pikmin group. Defeat them all and get ready for the boss.

Enemies

 * Segmented Crawbster

If there is one thing that you can tell about the Crawbster, it's that it really wants you to die. Get it to roll into the wall and immobilize it, then pound it as hard as you can. Once it is dead, you can access the Dark Grotto.