Clog

Because this subject has no official name, the name "clog" is conjectural.

A clog is an obstacle in Pikmin 2 and Hey! Pikmin that looks like a cracked rock and is used to block the entrance of caves and geysers, and to plug holes underwater so that areas remain flooded. They can be destroyed with Pikmin; often, only Blue Pikmin are able to approach them due to them being submerged. By destroying an underwater clog, a hole is opened up that drains the water from the surrounding area. However, clogs also appear on certain caves, and block the hole that leads to the next sublevel.

In Hey! Pikmin, a solid dirt block acts as a clog in Below the Ice.

Locations

Pikmin 2

Valley of Repose: drains lake that gives access to the main part of the area.
Awakening Wood: drains the small lake behind the ship, providing a shortcut.
Perplexing Pool: plugs the entrance to the Shower Room and drains the huge pond with the Toady Bloyster when destroyed.
Wistful Wild: drains an area near the Burgeoning Spiderworts.
In multiple caves, blocking entrances to the next sublevel.
- Submerged Castle: sublevels 2, 3 and 4.
- Hole of Heroes: sublevel 6.
- Dream Den: sublevels 1, 7 and 11.

Hey! Pikmin

Snowfall Field
- Below the Ice: Drains a small lake in the beginning, allowing a metal pipe to be dug out.

Gallery

A clog blocking the entrance to the Shower Room.
A clog out of water blocking the entrance to the next sublevel in Dream Den Sublevel 11.
The crack that is left on the floor after a clog is removed in Pikmin 2.
The clog in Hey! Pikmin.

Trivia

In Pikmin 2's game files, the holes on the final sublevels of the Subterranean Complex, the Hole of Beasts and the Bulblax Kingdom are told to contain a clog. This setting is ignored however, as final sublevels don't have holes.
By entering a cave just before a clog's destruction cutscene takes place, it is possible to bypass the cutscene and still have the clog count as being destroyed.^[1]