Bolt from the Blue

Bolt from the Blue is an Achievement/Trophy in BioShock Infinite. The Achievement is worth 25 Gamer Score and the Trophy is silver.

Requirements
The player will have to kill 5 enemies with a headshot while riding the Sky-Line.

Strategy

 * Use weapons that are zoomable, as headshots usually require great accuracy. The most efficient weapon to use is the Sniper Rifle, but any weapon that provides a steady aim will do, such as the Machine Gun.
 * The player can slow themselves down on the Sky-Line, making getting the headshots much easier.
 * Human enemies (ex. Soldiers) are the easiest to kill.
 * Play on the Easy difficulty setting to kill enemies with less damage.
 * The player can abuse the checkpoints in order to get this Achievement/Trophy. Find a location with enemies and a Sky-Line and simply kill everyone with headshots from the Sky-Line and reload your last save to start again. A great place for this is after leaving the Hall of Heroes towards the Patriot's Pavilion.

Behind the Scenes

 * The term "a bolt from the blue" refers to something important or unusual that happens suddenly or unexpectedly.
 * The Achievement/Trophy icon depicts a hand shooting lightning from a cloud in the sky.