Given its era, the show often tried to give Aesops, which often as not wound up Anvilicious. Pro-environment aesops were common ("Whale's Tales", the Toxic Revenger shorts, etc.). There was also an episode about why meat-eating is bad that leaned towards parody with an end-cap gag that involves the characters declaring their new-found adherence to vegetarianism and tucking into a veggie tray, only to have the vegetables scream in horror and run away, and an episode about the fur industry that was played a bit more straight. "One Beer" openly parodied these Aesops.
"One Beer" reportedly angered a number of parents and censors who believed the episode, which was designed to poke fun at moral of the story episodes, was in fact making fun of drunk driving. As a result of these complaints it was pulled from syndication for some time, at least until it appeared on the season three DVD set and aired uncut and uncensored on The Hub, Nickelodeon, and Cartoon Network (Latin America).
Then there was the episode where Moral Guardians sap the "tooniness" out of the show. Even "Whale's Tales" wasn't this ham-handed.
Awesome Music: This was the first cartoon in ages to use a fully orchestrated score for every episode, just like in the good ol' days.
Fifi. Half the fandom loves her and views her as the show's Ensemble Darkhorse. The other half are sick of her because of the half that loves her, feeling as if she steals the attention away from the show's memorable humor and writing, as well as a vast portion of the main cast in a vast majority of fanworks, in addition to most of said fanworks falling under a Fandom-Specific Plot usually involving her being paired with someone.
Furball, albeit it to a lesser extent than Fifi. He's the second most popular character in fanworks, mostly thanks to being the Fan-Preferred Couple with Fifi, and as a result tends to get caught in the crossfire of the above Fifi wars.
World's Biggest Fan: And when is Fifi going to get her own series?
Fan-Preferred Couple: In canon, Fifi and Hamton are love interests. Looking at fanon, you would hardly know this, as most usually pair Fifi up with Furrball, and to a lesser extent, Calamity. Reasons for this vary, but the common reasons seem to be because Fifi and Hamton fell victim to Pair the Spares, being the third odd one out of their respective power trios, and not having anywhere near as much relationship screen time as Buster and Babs, or even Plucky and Shirley. Similarly, TTA didn't have a Penelope note The name of the cat Pepe usually chased in his shortsExpy, and both Furrball and Calamity filled that role for Fifi once, so fans quickly latched on to it. As said, Furrball is generally more popular thanks to being a cat like Penelope, but Calamity is still more common than Hamton is.
Fandom Rivalry: Although they were mostly Friendly Fandoms for years, with the announcement that Animaniacs was getting a reboot, something fans had hoped for decades would happen to Tiny Toons, more than a few Tiny Toons fans have become outright antagonistic towards anyone who admits to liking Animaniacs as a result.
In one episode, Max claims, "There are laws to protect the rich, you know!" Then when you look at how some of the richest corporations and biggest banks have gotten away with some of the greatest financial fraud in history in recent years and it's as if he's right.
Genius Bonus: Only older viewers or those big on pop culture trivia or game shows will know what Hamton's referencing in "Kon Ducki" when he says, "I'll take Charley Weaver to block!" This is a reference to Cliff Arquette, a regular on The Hollywood Squares who appeared in character as Charley Weaver, a character he played on The Tonight Show and other shows of the era. (At that time, it was still believed the majority of the original run of Squares was wiped by NBC; thankfully, in 2002, someone uncovered a bunch of episodes in storage that were forgotten somehow.)
In "Animaniacs!", Dizzy's cartoon is titled "Dizzy Eat World!" Then the band Jimmy Eat World was formed. (Although if you're familiar with the story of how the band was named, you can see it's entirely possible that the cartoon may have indirectly inspired the name.)
It's the Same, Now It Sucks: This is probably the single biggest criticism of the series. Many of the show detractors point out that most of the Tiny Toons are, more or less, carbon copies of their Looney Tunes counterparts and half the show's humor comes from rehashing the same gags and jokes from the original Warner Bros. shorts.
Sweetie sometimes falls into this. Mostly due to the fact that unlike her adult counterpart, Tweety, she acts less like a Karmic Trickster, and more as an aggressor. This is especially prominent in her cartoon, "Let's Do Lunch", where her rival, Furball, was actually trying to ignore her, and not try to eat her. Furball being The Woobie doesn't really help with Sweetie's likability either.
A meta, non-character example would be Kennedy Cartoons, one of the studios that produced animation for the series. They actually got fired because their animation was not up to par, and fans still brand the Kennedy-animated episodes of TTA as bad episodes animation-wise. Not that it doesn't have its fans, however. Kennedy Cartoons is still slightly better than Encore Cartoons.
Seinfeld Is Unfunny: Everything that this show laid the groundwork for (lush animation, orchestral score, sophisticated writing) would be not only repeated but improved upon with Steven Spielberg's next cartoon Animaniacs. TTA, while it had plenty of jokes for grown ups, was still, first and foremost, a children's show and is considered to be tame compared to it's successor. Ironically, Tiny Toons had a dedicated college-aged fanbase when it aired, while the more "adult" Animaniacs was mostly popular with kids.
Fifi and Hamton's entire reason for being together in the show relies purely on Pair the Spares, being the third 'odd-one-out' of their respective Power Trios. Their relationship started by Hamton nervously asking Fifi to the prom despite never showing interest in her before the episode, and "revealing" he secretly had a crush on her, which again came completely out of the blue. Also, after the prom episode, the pairing was only very seldom referenced again in the form of the occasional brief gag or vague reference. This, among other reasons, is why many people prefer pairing her up with Furrball or Calamity. In the Supertoons episode, Decoy (Hamton) was smitten with Scentanna (Fifi) and waved to her. She responded by zapping him with a blast of magic that turned him to stone. This was one of two times Fifi ever rejected someone (the other being Johnny Pew).
Voice acting-wise, this is what happened with the voices of the Looney Tunes' characters in the Venezuelan Spanish dub, since it was the first time they were voiced by non-Mexican voice actors. The controversy was so bad, that WB decided to exclude anything related from them from being dubbed in Venezuelan Spanish and dubbing them in Mexico since then, regardless how much they have to pay for the dub.note Dubbing in Mexico is normally more expensive than dubbing in South American countries, due of the quality of Mexican dubs.
Voice acting-wise in English-speaking countries, there are those who feel that the show went downhill when John Kassir voiced Buster Bunny after Charlie Adler quit (even though the episodes Kassir was in were the last new ones to be made before Animaniacs premiered).
In "Prom-ise Her Anything", Montana Max is being legitimately stalked by Elmyra, who wants him to go to the prom with her. He does not have feelings for her, and does not even want to go to the dance. But because Max is the Designated Villain he is shown as being in the wrong for rejecting Elmyra.
Plucky in the Spring Break Special. He is minding his own business and just tries to get a girl to like him. Buster and Babs are running from Elmyra and just as he's about to get his girl, they use him as bait. Only this time, he didn't do anything to deserve it. After it happens, they make jokes about it.
Unintentionally Unsympathetic: Elmyra, and not just in "Prom-ise Her Anything" (see above). She's Obliviously Evil and doesn't want to hurt animals, but her childish mannerisms annoy people; her victims also make it quite clear that they want her to stop strangling them, but she doesn't seem to pay attention. Her Stalker With a Crush tendencies towards Monty (again, see above) can also tick people off, but not as much.
Vindicated by History: This show was often overlooked in favor of the other WB cartoons back in its time. It even got unfavorable reviews because it was a watered-down version of the classic Looney Tunes cartoons (though not as much as The Looney Tunes Show) Despite this, the show was popular at the time, scoring a surprisingly large number of fans in the college set, but when it was discontinued and replaced with Animaniacs the latter series came to overshadow it, causing it to disappear into obscurity for a time...until cable channels and DVDs brought it back to prominence. Now a days, it's considered one of the very few true successors to the Looney Tunes shorts of old, and still has a quite a big fandom that's trying to get new episodes being made again.