Brains is the Power Miner`s scientist.He drives the Mine Mech, and works on the Crystal Sweeper and the Titanium Command Rig. His ambition is to capture a Rockmonster and take it to the surface. He has also made it to the Earth's core. 

Silver lava suit

Brains also appears in Lego Atlantis in 2011. After the Power miners theme, being the first ever LEGO minifigure character to have a crossover to a different LEGO theme. Some speculate this is because he was a popular character in Power Miners.

Brains 2