Good dog: Achievement PSN of Ruiner

After meeting your brother You'll be thrown into another arena. Waves of enemies will spawn, spanning across all those you've encountered throughout the game, two of which will be cyborgs. Use the shock grenade to keep them stunned indefinitely until they die. This area is very good for obtaining  Mind Control Master as you can max out the Ghost Break skill tree and let them fight among themselves. Once you've finished this area you'll get another cut-scene and your trophy.