A robot's core programming and experiences are contained within its central processor-its brain. The brain's "drive to survive" is determined by its force of
personality, as represented by the robot's Charisma.
Whenever a robot is destroyed (reduced to 0 or fewer
hit points), some brain degradation occurs. Each time its body is destroyed, the robot suffers a permanent drain of 1 point of Charisma. The brain ceases to function and the robot "dies" if its Charisma drops to 0 as the result of a permanent ability drain.
If a robot has at least 1 point of Charisma left after its body is destroyed, its brain can be removed and transplanted into another robot of the same size and frame. Removing a robot's brain from a destroyed frame and installing it in a similar but intact frame requires 10 minutes of work, a mechanical
tool kit, and a successful Repair check; the Repair check DC varies by frame type (see below). Not using a
tool kit imposes a -4 penalty on the Repair check.