Batman: Arkham Origins Blackgate - Deluxe Edition
31 Achievements
14-17h
PS3
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He's Sleeping
Perform 20 stealth takedowns
21.9%
How to unlock the He's Sleeping achievement in Batman: Arkham Origins Blackgate - Deluxe Edition - Definitive Guide
Redemption, Mode
You can perform a silent takedown by sneaking up behind a thug and pressing 
. You can also perform silent takedowns from ledges and floor grates. Do this 20 times for the achievement.
