User blog comment:Willbachbakal/Singleplayer Enemies: Pharma Splicer/@comment-1876907-20100824023149/@comment-1330314-20100824092015

They do heal. They're only hostile towards strangers, remember? Second, BioShock isn't about shooting random Splicers in the face, it's about exploring and narrative and, in the case of combat, using your brain.