Ion Laser



The Ion Laser is a new weapon introduced in BioShock 2's ultimate DLC, Minerva's Den. It is capable of firing a beam of concentrated energy, dealing continuous damage as well as blinding the victim.

Trivia
The usage here of the word "laser" is an anachronism. The term was coined in the year 1998, while the story takes place in the 1960s. The term "LASER" (Light Amplification by Stimulated Emission of Radiation) did exist before, but only in upper-case.