| This minifigure has only appeared in video game(s)|
Although this article is about an official minifigure, it never existed in physical form, or appeared in any official LEGO sets.
There have been several versions of Killer Frost, with the newest (and most popular) being Caitlin Snow. In LEGO Batman 2, Louise Lincoln is the second incarnation. After the death of Crystal Frost (the original Killer Frost), her friend Louise Lincoln re-created the experiment that gave her ice powers to take revenge for her friend's defeat.
In LEGO Batman 2: DC Super Heroes, Killer Frost features a wild, spiky, dark blue hair piece (that is shared by Nightwing from the 2006 Batman theme). Louise has light blue skin which covers her arms, torso and face, which features an icy smile. Her suit consists of a blue sleeveless garb, exposing parts of her chest and back, while her legs are solid black. She also wears blue gloves, which are the same colour as her suit. In the portable version of the game (the only version this Killer Frost comes in), Killer Frost is able to freeze water and enemies, put out fires and fire icy projectiles.