the BioShock Wiki:
"Big Daddies are genetically-enhanced human beings who have had their skin and organs grafted into an enormous diving suit. The candidates also go through voice box modification and pheromone application. They are then placed in large vats with a substance that effectively turns them into mindless drones. With gene splicing, the humans inside the suits were given enhanced strength and agility."
... Or they could have just paid 320 points ($4) on Xbox Live. Jeez, we guess Andrew Ryan wasn't so smart after all. (Related note: If you spend $4 on a Big Daddy costume for your Avatar, you are, legally speaking, no longer entitled to the sweat of your own brow. Sorry.)
BioShock 2 Avatar items come to Xbox Live
All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.