BIG DADDY “ALPHA SERIES” (BIOSHOCK)
Like Subject Delta, other failed prototypes of the Alpha Series of Big Daddies survived. They have long since lost their Sisters, and have evolved into something vaguely like a Splicer. These are barely sentient monsters that attack anything near them. Like Delta, they can use Plasmids and regularly emit bursts of Electro Bolt, Incinerate!, and Winter Blast from their malfunctioning suits. They tend to use Launchers, Machine Guns, and sometimes Shotguns in addition to their Plasmids. Their armor is similar to Delta’s, but more decayed, with part of the arm exposed.
Their bonds were to be to a single Little Sister, with Delta being the first success. Because of this, they are believed to not have undergone some of the modifications later Big Daddies have, such as the application of pheromones. There was no need due to their physiologically enforced bond to a single Little Sister. They were not fused into their suits (as Subject Delta could remove his helmet when he was ordered to by Sofia Lamb). Many of the Alpha Series subjects appear to have had incomplete or otherwise faulty bonds so that instead of slipping into a coma after losing their Little Sisters, they simply went mad.
Aside from the Alpha Series, Big Daddies communicate by uttering haunting sounds similar to that of whale calls. Alpha Series communicate with low, inhuman grunts and roars. For easier interpretation (as stated in the Deco Devolution art book), production model Big Daddies have a bioluminescent chemical substance which filled the helmet, displaying its state of emotion or mind. The Big Daddy has three different colors he will display.
Green indicates the Big Daddy is hypnotized and friendly.
Yellow indicates awareness but indifference to his environment, however, will react to people near him by shoving them, if the Big Daddy has a Little Sister with him and the player continuously stands in his way, the Big Daddy will become enraged in order to protect the threatened Sister.
Red indicates rage towards assailants.
The surviving Alpha Series from BioShock 2 are in a permanent state of wrath due to prolonged separation from their Little Sisters. This excludes subjects Delta and Sigma owing to their unique circumstances.
Big Daddy Types
So far, there are five main types of Big Daddy protectors, including two elite versions for only the Bouncer and Rosie. Of the five protectors, only four are functional and protect the Little Sisters, with only the original Alpha Series as non-functional protectors, with the exception of Subject Delta and Subject Sigma.