Chamber of Life

The Mask of Life Chamber was where the Mask of Life and it's guardians Vezon and Fenrakk were located. As seen in the fifth issue of Bionicle Ignition (comic book) the Toa Inika invaded it and fought Vezon and Fenrakk until Vezon and Fenrakk were defeated. In Bionicle Heroes, on the last level you had to fight Fenrakk to get to Vezon. Once you had defeated Fenrakk, you had to rapidly fire your weapon at Vezon to beat him.

This area has several lines of defence, which are listed below:
 * Guardians of the Ignika
 * Axxon
 * Brutaka
 * Umbra
 * Vezon and Fenrakk

A pool containing Mutagen into which the Piraka fell.
 * Mutagen Pool

The Zone of Nightmares recreates any being's worst nightmare - in the case of the Piraka, it created the monstrous Irnakk
 * Zone of Nightmares

A room where the recorded voice of one of the Great Beings told the Inika one of their number had to die in order for them to pass. Matoro volunteered, as he wasn't a warrior like the others, but immediately after he died he was returned to life. They were informed it was the willingness to sacrifice oneself and not the cold fact of death that mattered.
 * The Chamber of Death

The Piraka encountered a few other obstacles on their way to the mask, including jets of fire, a mutagenic pool, and entrapping cylinders. If all worked together they could get out of the cylinders, but if one acted alone he would escape while all the others were killed.
 * Various other defences