The final boss of the first [[Doom (game)|]] game, and recurring boss in [[Doom II]]. An enormous brain with a face and arms, supported by spider-like robotic legs, with a [[gatling gun]] attached to it's chassis.

Returns in [[Doom (2016)]] as the final boss there as well, instead with a [[plasma rifle]] attached to its chassis.

h4. See also
* [[DOOM (series)|]]
* [[Cyberdemon]]
* [[Arachnotron]]
spider mastermind