Double Takedown

The Double Takedown is a silent Takedown in the Batman: Arkham series.

Gameplay
The Double Takedown was introduced in the first Predator situation in Batman: Arkham City, when Batman went to the church in order to trace Joker after his attempt to snipe Catwoman at the court, only to encounter Harley Quinn and her armed Joker goons. It was part of the three new Takedowns introduced in this game, the other two being the Wall Takedown and Over-the-Ledge Takedown. If you're not playing the game in New Game + mode, Batman will monologue to help you know how to do it, namely by sneaking behind 2 unsuspecting enemies that are standing close together and take them out at once. The Double Takedown was introduced as a Predator Takedown, but you can also use it in certain Combat situations as long as none of the enemies is alerted of your presence.

The Double Takedown is a silent Takedown, meaning it will not alert other enemies to the location where it occurs. As its name suggests, it can only be done on exactly 2 enemies.

Another variant of the Double Takedown, which is also a variant of the Ledge Takedown, is the Double Ledge Takedown, which you can perform by hanging on a ledge near 2 unsuspecting enemies rather than by sneaking behind their backs. This Takedown is, however, loud, because the enemies will scream when you pull them off the ledge.

Prior to Batman: Arkham Knight, the Double Takedown cannot be performed on enemies panicking due to smoke, whether due to an exploded smoke pellet or fire extinguisher. In City, for example, you have to interrupt this period of not being able to do it first, by throwing a Freeze Blast at one of the enemies, only then can you take him out with another one with the Double Takedown. In Knight, this is no longer the case if you're playing as Batgirl.

All characters in Batman: Arkham City and Batman: Arkham Origins can perform the Double Takedown. In Batman: Arkham Knight, however, it was replaced with the loud Double Fear Takedown for Batman, Robin, Nightwing and Azrael, which means that you have to "charge" the "Fear gauge" with a Silent Takedown to be able to use it again in a given Predator situation. Additionally, Catwoman can no longer perform it; Batgirl, Harley Quinn and Red Hood are the only characters that can perform it.

Animation
When Batman, Nightwing or Batgirl performs a Double Takedown, the character will slam the 2 enemies' heads on each other's, rendering them unconscious immediately. Robin and Deathstroke will use their staff to pull both of them by their throats to the ground and stepping the staff to incapacitate them. Catwoman will jump on them, and use both her hands and feet to slam their heads on each other's. Red Hood will break the neck of one them, and shoot the other dead.