Danger Room: X-Men Gold

While working to install the Shi'ar technology one night, the Danger Room spoke to Professor Xavier and asked, “Where am I?”. Realizing that the Danger Room had mutated and become alive, but still needed to train his X-Men, Professor Xavier made the choice to ignore and hide the lifeform.

Every destruction of the mansion led to rebuilding, and usually upgrading, of the Danger Room. One time, Colossus was controlled by the Shadow King and Professor Xavier was forced to lock him in the Danger Room, which he completely destroyed.

Afterward, Professor Xavier, asked Forge, a mutant with an unusual talent for inventing mechanical devices, to upgrade the Danger Room further. At this time, the location was moved to the west wing of the sub-basement of the mansion.