Subject Delta



Subject Delta or The First Big Daddy (a.k.a. Prototype Big Daddy) is the protagonist of BioShock 2. He was the first succesful subject in the original line of Big Daddies, who were supposed to be bonded to one Little Sister. He was bonded to a Little Sister named Eleanor. But, something happened and he was put into hibernation and hidden well away from the citizens of Rapture and the events of BioShock. Dr. Bridgette Tenenbaum who seemingly had control over him awakened him. In a demo of the game, soon after he wakes up, he first confronts the Big Sister and is eventually stuck in a flooded Kashmir restaurant. While walking to a nearby waterlock, Tenenbaum explains the nature of the Big Sister. Soon after, the player encounters a Little Sister being attacked by a Splicer and saves her, however, she is hesitant at first, but quickly trusts him, due to the conditioning. After battling waves of Splicers while extracting ADAM, the electronics in Fontaine Futuristics go haywire. The little sister sings in a worried tone and the Big Sister appears. She attacks the player and eventually knocks him out cold.

He is shown to have many of the same abilities as a production Big Daddy, plus the ability to wield and upgrade Plasmids as well as free will and some degree of sanity. Due to his free will, he is not forced into a protection bond with the Little Sisters, but in order to obtain ADAM he will have to get to them anyway. To do this, he must kill one of his own brethren, at which point he is given the option to either "harvest" or "adopt" the Little Sister. Harvesting functions the same as it did with Jack, whereas with the new "adopt" option, the First Big Daddy puts the Little Sister on his shoulders, forming a bond with the girl. He protects her, and the Little Sister will give him some of the ADAM she harvests from Splicer corpses. One of the new moral choices is involved after adopting a Little Sister. After she has finished harvesting the ADAM from a corpse and given it to the Big Daddy, the player can send her to Tenenbaum or harvest her, gaining an even greater amount of ADAM.

Being a prototype, the Big Daddy is also granted use of both the Bouncer's drill, and the Rosie's Rivet Gun. Being less bulky than the production models gives the First Big Daddy greater speed than either a Rosie or Bouncer, at sacrifice of some of the raw strength they possess. The presence of flashback sequences scattered throughout BioShock 2 will show how the First Big Daddy came to be, and why he was absent from the events of BioShock. It's been shown that the First Big Daddy is able to use Plasmids in more effective and innovative ways than Jack could. Upgrade trees are present for these Plasmids, not only making them more powerful but also creating new abilities and the new feature of combining Plasmids, such as laying down a Cyclone Trap and then charging it with Incinerate!. His greatest enemy shown so far is the Big Sister.

The Rivet Gun has three types of ammo similar to that of a Crossbow. The first is the heavy rivet which is powerful enough for a one shot kill. The second is the normal rivet in which the big daddy requires multiple shots to kill. The third is a trap rivet. These proximity weapons shoot approaching enemies, and are special ammo for your Rivet Gun. One of the newer features that this Big Daddy does is upgrade. When hacking a Security Bot, he can repair it and modify it so that he can exploit it for longer than Jack could. Also, while you hack, you may no longer have to do the pipe-linking game. Instead for single player, a needle scrolls left to right, and you have to button-press it at the right time. If you land on the green zone, you successfully hacked; land on the blue zone, you will also earn a bonus. The First Big Daddy can also upgrade himself. Apart from his Plasmids, he can upgrade his drill, adding a diamond drill bit perfect for cutting through armor. This has also led to rumors of armored Splicers. On top of the drill bit, the Big Daddy can upgrade the drill with a lubricating nozzle, reducing the drill overheat meter, allowing for longer attacks when the drill is active.