The Underground Laboratory Block is a place where experiments can be carried out under observation in sealed laboratory areas.
The block is split into two, an observation room, which contains all the control panels and communication devices, to monitor the experiment, and a sealed room to carry out the tests under controlled conditions.
Oxyhydnite Testing Room
Chemical Testing Room
In Danger At Ocean Deep, Brains conducted tests with high-density fuel and low-density OD60.
In The Cham-Cham, Brains used the equipment in this room to try and crack the code used by the Cham-Cham machine.