- Character Rerailment: To an extent, but Deathstroke (an Adaptational Wimp in Son of Batman) here looks closer to his comics counterpart in terms of personality and fighting skill, and Miguel Ferrer replaces Thomas Gibson in the role to give him a more intimidating voice and a deeper vocal performance on the whole. Most notably towards the end, Deathstroke is able to beat back both Nightwing and Robin in a fight despite having been beaten by Damian in his first appearance.
- Complete Monster: Deathstroke again. See that page for details.
- Even Better Sequel: Regardless of how you take the film, most agree that it's an improvement over Justice League vs. Teen Titans, giving all the Teen Titans characters time to shine in their own story without the JLA around.
- Growing the Beard: For the New 52-based Shared Universe portion of the DC Universe Animated Original Movies (the standalone films have been popular and acclaimed since the 2000s). Reception appears to be very positive, with many calling it the best film from WB Animation in years.
- It Was His Sled: Terra's working for Slade as The Mole. Not only is this true for the comic, but the 2003 Teen Titans cartoon adapted the story for its second season.
- Just Here for Godzilla: People who otherwise weren't interested in the DCAMU for various reasons watch this movie to see the Dick/Kory moments.
- Moral Event Horizon: Deathstroke agreeing to let Brother Blood put Terra onto his power and life force draining machine in place of the seemingly deceased Nightwing. After Terra had put so much trust in him and had done everything he needed her to do, he has little compunction turning on her, simply stating "Sorry kid, but a contract is a contract.", and even asking that his promised payment be doubled because Terra's powers make the captured teens more valuable than they'd be were it Nightwing in Terra's place instead.
- One-Scene Wonder: The original Teen Titans, led by Dick as Robin, rescuing Starfire in the flashback prologue. Heightened by 3 of them having their Young Justice voice actors.
- Padding: The Action Prologue follows the original Teen Titans as they first meet Starfire and convince her to join the team. While the sequence expands on her backstory (which was only handwaved in Justice League vs. Teen Titans), it has no bearing on the film's main plot, which focuses mostly on Terra's personal character arc.
- Rescued from the Scrappy Heap: This film continues to do this for Damian Wayne. Many viewers have expressed their relief that he's a more likable character in this movie rather than an obnoxious character like he was in his earliest two films.
- Squick: Terra, a teenager, is in a relationship with the middle-aged Slade. While Slade holds off on anything stronger than a hug as a way to control her, he's quite blatantly grooming her, and likely has been since she was a child.
- Beast Boy's constant hitting on Terra was likely meant to come off as cute flirting considering this was written before the Me Too Movement. Unfortunately, the fact that she very obviously dislikes it and he ignored her when she told him to stop makes this sexual harassment. Calling her "Mama" would be bad enough, but giving her "monkey kisses" and constantly hitting on her while they spar and he's wrapped around her as a snake is straight up molestation.
- Unexpected Character:
- Speedy and Bumblebee. Especially as the Justice League only meet each other in Justice League: War and are supposed to be relatively or totally new at superheroics, and then the series goes straight to Batman having a son who becomes the second Robin in Son of Batman, there seemed to be little room for a "classic" Teen Titans team with Dick/Robin and his peers and Green Arrow hasn't yet been shown to exist in this universe. Practically nobody expected Kevin Smith, the real life actor and screenwriter, to be an actual character in the movie either.
- Kid Flash, big time, with the reveal by Word of God it was actually a young Barry, who never held the mantle in canon and it was assumed initially by fans that it was Wally.
YMMV / Teen Titans: The Judas Contract