A "Boomer" is a synthetic life form developed by inventor Katsuhito Stingray in the anime series Bubblegum Crisis. Boomers come in many shapes and sizes, dependant on the jobs they are required for. Produced mainly by the Genom corporation, Boomers serve as maids, waiters, bodyguards, store mannequins, and military weapons. Some, like the Sexaroid model of Boomer, have gained sentience and developed minds of their own, but most are simply machines. Boomers are capable of appearing human, but tend to 'burst' out of their synthetic skin in combat situations, revealing their true selves - giant, metallic killing machines armed with built-in lasers, machine guns, and arm blades capable of cleaving through a fire hydrant. They can appear to be either male or female.
Often, a Boomer which is running down or malfunctioning loses control of itself, and goes on a murderous rampage. Due to the heavy armour and powerful weapon systems that many Boomers carry, casualties tend to run high during such incidents. To date, only the AD Police and the armoured vigilantes known as the Knight Sabers have had any luck in stopping these creatures.
(see also AD Police, Boomeroid, Replicant, Terminator, cyborg)
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boomer is also a term used to refer to ballistic missile submarines