Hole of Steel

The Hole of Steel is a cave in Pikmin: Planetary Evolution. It is the Technical Zone's third cave, consists of five metallic sublevels, and is where many mechanical enemies reside.

Sublevel 1

 * Enemies
 * Biowog
 * Gatling Groink

Sublevel 2

 * Enemies
 * Biowog
 * Gatling Groink

Sublevel 3

 * Enemies
 * Greater Spotted Jellyfloat
 * Man-at-Legs

Sublevel 4

 * Enemies
 * Gatling Groink

Sublevel 5

 * Enemies
 * Iron Groink

This sublevel is where the boss, an Iron Groink, resides. Once defeated, a note detailing the location of a treasure in one of the Technical Zone's caves is found.