- Audience-Alienating Premise: An anime-inspired superhero action show.... starring descendants of the Looney Tunes? The show tries to combine slapstick and sight gags with tense action scenes, story arcs, and character development, creating a disconnect that makes the whole thing impossible to take seriously. Even people who like the show have a hard time with this.
- Author's Saving Throw: Season 2 is much more lighthearted than Season 1, and includes more villains based off of established Looney Tunes.
- Broken Base: The show had many detractors when it was still airing, bemoaning it as awful. But nowadays you can find a lot of devoted fans for the show who felt that it was an interesting direction even if it differed from the usual Looney Tunes formula.
- Critical Backlash: One of the most polarizing things to come out of the Looney Tunes franchise, yet it still has its own fandom and has decent audience reception on review sites.
- Designated Hero:
- Ace is supposed to be the greatest hero of all time, but has some questionable moments, especially in the second season. In "Secrets of the Guardian Strike Sword," for example, he calls out his rival for attacking him from behind, then later in the same fight takes advantage of said rival's distraction to attack him from behind. Worse, that same fight is supposed to prove that Ace is a "true warrior" and thus the one who really deserves to wield his Cool Sword.
- The Royal Tweetums. Much like ancestor Tweety in his very first 1940s incarnations, Tweetums is a self-centered jerkass who runs around getting into danger, is very obnoxious, and causes all sorts of pain and suffering for his caretakers when he's not treating them like crap. When foe Sylth Vester comes along, his reasons for trying to take out the little bastard include having had his head shoved into a singularity; he and Duck actually bond some over the abuse Tweetums has put both of them through. And the show wants you to believe installing him on the throne will prevent centuries of galactic warfare.
- Ensemble Dark Horse: Rev's family (who showed up in "Family Business") got a MASSIVE fan base because of their quirky natures.
- Epileptic Trees: The first season of the show is almost completely divorced from rest of the Looney Tunes franchise, with the Loonatics themselves feeling out of place in a world that doesn't match their aesthetic. Additionally, any references to the classic shorts are few and feel like they were forced into the script. Considering this, it's not entirely outside the realm of possibility that the show was first conceived as a completely original project but had the Looney Tunes branding forced onto it by network executives.
- Evil Is Sexy: Optimatus.
- Genius Bonus: At one point, Duck calls a saber-toothed tiger "Smiley." While this might at first seem to be a jab at the... well, "Saber Teeth," the actual name for a saber-toothed tiger is "Smilodon." That's pronounced "Smile-oh-dawn," for reference.
- Hilarious in Hindsight:
- Ralph "Pa" Runner's animosity towards coyotes is reminiscent of the Fantastic Racism in Zootopia, specifically of Bonnie and Stu's animosity towards foxes.
- Ace Bunny, the descendant of Bugs Bunny, is voiced by Charlie Schlatter. In a short episode of Justice League Action over a decade later that parodied Looney Tunes, he would reprise the role of the Flash, who's behavior is very Bugs Bunny like.
- One episode has Candi Milo, the voice of Zadavia, also voice Granny's descendant Grannicus. Come New Looney Tunes , and she becomes the new voice for Granny herself.
- Ho Yay: Some fans read a degree of UST into Tech and Rev's friendship. In the second season, the creators may have picked up on this and, in an attempt to reduce it, had Tech and Rev show more animosity towards each other. However, this just made them look like a bickering old married couple.
Rev: If you weren't a coyote - and a guy - I'd kiss you!
- The episode "Family Business" is a goldmine for this with a lot of Does This Remind You of Anything? moments. Rev's parents react to Tech as a stereotypical parent would react to their child's boyfriend, with not trusting him and with sarcastic insults.
Tech: Then lucky for me, I'm both.
Ace: (about Rev) I was going to save you next.
- In "Weathering Heights", during the fight against Weather Vane, Tech saves Rev and the following exchange happens:
Tech: I got impatient. (winks at Rev)
- For some reason Rev always gets close to Tech at certain moments, places his hand on his shoulder and stays that way. No reason is given, he just does that sometimes.
- Jerkass Woobie: Danger Duck. You can't help but to feel sorry for the crap he goes through, even if he did a Jerkass move beforehand.
- Launcher of a Thousand Ships: Tech.
- Moe: Lexi, in her flashback from before she became a hero.
- Snark Bait: Big time. The only other Warner Bros. helmed cartoon that gets it worse is Pinky, Elmyra & the Brain.
- Spoiled by the Format: The pilot has a running gag where Duck's still trying to settle on a hero name for himself. Since the opening theme has a roll call with everybody's name and list of their powers, though, viewers old enough to read already knew how that was going to turn out.
- Superlative Dubbing: The Mexican Spanish dub deserves a special mention: Traditionally, Warner Bros. tends to dub almost all their animated, non-Looney Tunes-related series from the 90s to this date into Latin American Spanish in Venezuela since it's cheaper to dub there than in Mexico. This seriesnote is one the few modern animated ones dubbed by Mexican voice actors, rather than Venezuelan ones, even if Warners could invoke the fact the Loonatics are descendants of the original Looney Tunes just to avoid dubbing the series in Mexico. The reason for not dubbing the series in Venezuela could be the criticism the company received from Spanish-speaking fans about how the original Looney Tunes were dubbed by Venezuelans in both Tiny Toon Adventures and some few modern shorts.
- Tainted by the Preview: The early character designs were extremely stylized and overly spikey, and the characterizations were written to be so X-TREEEEEME that it instantly turned people off. The show was being mocked before it even came out, and many of those people continued to mock it while refusing to even watch it. There were even people still complaining about the character designs not realizing those designs had been changed.
- They Changed It, Now It Sucks!: The change of the opening theme in season 2 wasn't well received.
- They Wasted a Perfectly Good Character: The whole Loonatics team seems to suffer from this. A clear point is that all six members on the team take a role commonly found in other cartoon crimefighter teams seen countless times (Ace being The Leader who`s always on top of things and in the right, Duck serving as the Butt-Monkey who always acts like a jerk asking for trouble, Lexi being The Chick and not really showing anything different in personality outside her gender, Tech being the Smart Guy, Slam as the groups muscle and Rev as the fast talking, fast running Chatter Box). Maybe the show could have taken the common tropes associated with team members and tried to add more traits to each one of them. (Ace could still be portrayed as skilled but also having moments of doubts in his decisions as leader (maybe due to the fact he was never one to begin with), Duck could have tried to experience Character Development and matured more, learning something that isn`t tied down by Aesop Amnesia and being a team player, ect. Heck, since a portion of the fan base consider Tech and Rev an Official Couple, the show could also have been subtle in portraying an LGBT relationship during a time when same sex couples were still not in the mainstream of animated media. The potential for these characters were there, but the writers didn`t tap into it.
- They Wasted a Perfectly Good Plot: In two different directions.
- People who thought the idea of redesigning the Looney Tunes as action heroes had promise were put off by the show's over-reliance on Original Generation characters. The first season in particular was all original characters, with the only Looney Tunes characters present at all being the main six. Season two introduced more Looney Tunes characters like Sylvester, Elmer Fudd, and Marvin the Martian, but still tended to rely heavily on original generation characters.
- People who thought the series was actually a decent action/adventure show usually argue that including the Looney Tunes at all was a mistake and would have preferred all original characters and a focus on action instead of comedy.
- Danger Ducks back story is a wasted plot and character arc. Orphan Duck tricked his pal to get adopted and obviously feels guilty about it and feels he drove him to villainy. Many fans feel this could have been a character arc with some deep, and real development for Duck and Pinkster.
- Heck, the Pinkster character! They could have made him a good guy who was robbed of his chance at a happy home and could have had proper villainous motivation. What do they do? They just make him a jerk from childhood and removed any chance of making him a complex villain.
- This Is Your Premise on Drugs: The reaction many unsuspecting viewers have upon randomly stumbling into an episode for the first time.
- Took the Bad Film Seriously: As shallow as the writing often was, the voice acting is arguably one of the few saving graces of the series.
- Uncertain Audience: This show's biggest problem is that after the negative backlash to the original offering, the creators seemed unwilling to commit to being either too serious or too comical for fear of alienating potential viewers even more. As a result it's usually a little too silly for the action and character development to really work, yet at the same time it also takes itself a little too seriously for the jokes and callbacks to the source material to work as well as they should've. The usual favorite example of this kind of wishy-washy treatment is at the end of the show's run where twice big rocks fall on Danger Duck and Sylth Vester, and it's supposed to be funny and forgotten after the next cut (with neither of them supposed to have a Healing Factor to explain this). Then one minute later the villains show up and Ace and Lexi can't blast their way out of a collapsed room because suddenly rocks falling on the Loonatics is something that would kill them.
- We're Still Relevant, Dammit!: By all accounts one of the most conspicuous examples.
- Win Back the Crowd: After the failure of Looney Tunes: Back in Action, which starred the classic versions of the characters, Warner Bros. attempted this with a hipper, more modern take in an effort to connect with a younger audience. While the show did well enough to get a second season, some of the fanbase (both younger and older) were turned off by the premise.
YMMV / Loonatics Unleashed