Plushy Snare

A stuffed puppy was a type of bait for various unsuspecting soldiers for a trap. It makes electronic barking calls, which causes the soldier to drop his or her guard and adore the toy.

Behind the scenes
The stuffed puppy is a weapon in the third iteration of Metal Gear Online. According to the commentary for the debut trailer, the stuffed puppy weapon was largely derived from the dirty magazine item from prior Metal Gear titles in terms of function. They had also initially planned to use an actual live puppy for the game, but they changed it after realizing the implication that players could decide to just shoot and harm the puppy if it was live and wanted to avoid moral backlash for it.