Movable boxes

 are interactive objects introduced in Frost Bite 2. They are basically a brown box with an arrow pointing horizontally left and right. It can be moved by shooting it with the Grappling Hook. When shot with the Grappling Hook, when the hook extends out, grabs the Box, the hook returning to the Grappling gun will pull the box.

The box is used as a platform for the Eskimo to get higher up, but she sometimes needs to use it so she can jump higher up to grab the ceiling. They appear a few times in Frost Bite 2. Enemies will walk past the Box if they com in contact with it, and hazards will not affect the box at all.

Trivia

 * There is a glitch that if the player shoots at a Box, and turns around, facing the opposite direction, the Grappling Hook, and the Box attached to the Grappling Hopok will move to face the opposite direction.