BioShock

The same masks were later worn by splicers, perhaps in order to cover their deformations caused by ADAM addiction, Steinman's plastic surgeries and war scars.

"Why do they wear those masks? Maybe there's a part of them that remembers how they used to be, how they used to look. And they're ashamed" ~ Atlas

Source: Alex Garner

Back when "dog in a wheelchair" and "frog with the funnel in its anus" were Rapture's gatherers, Bouncers had two flat-headed drills. Only after Little Sisters became gatherers, Bouncer had one of his drills changed into glove so that he could pick up his proteges.