For Nightwing's full console character biography, click here.
- Nightwing's real name is Dick Grayson (though his birth name was Richard Grayson; and one of his ancestors was one of the assassins Talons that belongs to the Court of Owls), and he was the original Robin.
- Regime Nightwing's real name is Damian Wayne, and he is the son of Bruce Wayne and Talia al Ghul (Ra's al Ghul's daughter; which makes Damian his grandson).
- Nightwing New 52's passive was originally 200% damage increase for 4 seconds upon tag-in, but this was changed to the 100% damage increase for 3 seconds before the Multiplayer update dropped.
- Nightwing/Prime's Special 2 has an unusually slow start-up time.
- This is possibly due to all versions of Nightwing fighting in Escrima style, while "Staff Spin" is a Staff-based move. This causes Nightwing to combine his Escrima Sticks before commencing the attack.
- He is one of the only characters to not have a Challenge or Online Mode character (alongside Lex Luthor and Cyborg), although he has a Phantom Zone card, Nightwing/Batman Ninja.
- Nightwing is the only character to have one card in all four tiers: Bronze, Silver, Gold, and Metal.