Chrysalis

Chrysalis is the fifth boss faced in Metal Gear Solid: Peace Walker, and is the second AI weapon faced.

Description
The Chrysalis is faced in Mission 15 - Chrysalis Battle. Technically being a chopper, Chrysalis has two modes: "normal" mode and "attack" mode, interchangeably switching between the two after announcing so. In normal mode, she soars around the area, occasionally hiding in the fog encasing the area for a sneak attack, and bombards the player with explosives and machine gun fire. Chrysalis is basically invincible in this mode as she flies so fast, the player likely wouldn't be able to land any meaningful attacks. In attack mode, she slowly hovers over the area and executes the same attacks, but the player can actually attack them (specifically its AI pod) with a machine-gun. Any other weapons are virtually worthless, and she automatically teleports away from any missile launcher attacks. She'll also sometimes deploy two small flying drones that will try to restrain the player, leaving them vulnerable, but these drones are extremely weak and their restraints can be easily shaken off. In attack mode, Chrysalis will sometimes target the player for an air-strike. While there's no way to dodge this, besides a lucky miss, the targeting leaves Chrysalis open for a missile shot, causing heavy damage. It's recommended to have a few supply markers set out in case the player runs out of missiles, rations, or machine gun ammo.