Batman had Nightwing infiltrate Arkham Asylum as the Joker for backup. From – Batman Vol. 2 #1 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on Tumblr (Opens in new window) Tumblr Share on Pinterest (Opens in new window) Pinterest Like this:Like Loading… Post navigation Batman And The Joker VS Arkham Inmates The Bat Family Suits Up