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The Chrysalis is the final boss and main antagonist of Resistance: Retribution.
The Chrysalis was the mutated form of Raine Bouchard, who had purposely infected herself with the Chimeran Virus in order to obtain it to be use to create Dr. Claude Bouchard's serum that would eradicate the Carrier strain and halting the Chimeran conversion process. Dr. Bouchard was unable to cure his daughter of his infection, instead utilizing prototype versions of his samples in the hopes of at least slowing down Raine's infection.
Volunteering to deliver the serum to the Chrysalis Lair, Raine began falling under the influence of the Chimera. By the time James Grayson used the serum, Raine had fully mutated into a Hag-like creature, deeming herself the Chrysalis. Grayson was forced to fight her. During the battle, the Chrysalis demonstrated psycho-kinetic attacks, near-invulnerability to normal bullets, and creating a psychic shield. Similar to Daedalus, the Chrysalis was able to retain Raine's mind. Grayson was able to defeat the Chrysalis before finishing her off with a gun shot to the head.
The only way to puncture through The Chrysalis' shield is to activate one of the towers found throughout the stage. Only one will be active at a time, so the player must be careful since The Chrysalis has a fatal blue laser attack which will instantly kill the player. Also The Chrysalis' attacks are not the only threat. Two groups of 5-8 Assault Drones will also appear throughout the middle of the fight, while The Chrysalis hides in a location that the player cannot access.
- It is recommended that the player strafe, while opening fire with the Auger or Chaingun's shield activated. Or another solution is to use the Fareye FR-1 as the rifle could make her flee without giving her any chance to attack if the player use the Fareye's secondary fire function. Also, the player is awarded a skill point for using only the Fareye for the battle.
- Once a tower has activated, it will fire a laser that temporarily breaks its shield. The player is now free to fire away within this rather short period of time. After a certain amount of time, it will retreat to a location from which it cannot be fought. More drones will appear. Only after they are defeated will The Chrysalis re-appear. Repeat the process. When half of its health is drained, two armored Titans will appear instead of drones. Try to kill them from a comfortable distance before they attempt to close in and bash the player with melee attacks. When they are rather far, use the L206 LAARK's secondary fire to gain the upper hand. After this is done, switch to the Razor and deliver several charged blades. Keep in mind that they will ricochet off a surface and home in on any nearby enemies.
- After killing the enemies, The Chrysalis will reappear. Use any mixture of firepower while strafing to avoid The Chrysalis's deadly laser until she is finally defeated. The Longbow 1S-1K, acquired through getting all the Retribution Intel, can also puncture the Chrysalis' shield as it spares time by not having to circle around to turn on the lasers. This is definitely a weapon that is worth unlocking, as it will help the player unlock a skill point for defeating The Chrysalis in less than four minutes.
- The general environment in which the the battle between James Grayson and The Chrysalis is fought, is the same for the previous area in the Birthing Chamber.