There is nothing quite as heartbreaking for animation fans as watching a once-brilliant series lose its original spark. Whether derailed by executive interference, exhausting filler, or sudden creative shifts, many beloved cartoons end up lingering on screen far past their prime. Recently, passionate viewers gathered online to debate which iconic series suffered the most devastating declines in overall quality. From childhood classics to modern anime hits, these 30 animated shows were highlighted by fans as having the absolute worst falls from grace in television history.
"Sword art online."
"It consistently gets a LOT of flack for being a bad anime, but in reality the original premise and first arc is pretty good, they have a good concept (100 floors to clear to escape the death game), could EASILY get an episode a floor, have a conflict B plot, and a boss raid A plot, and get 100 episodes AT LEAST."
"The Dragon Prince."
"The first three seasons were a flawed but promising series that seemed to gradually increase in quality as time went on… only for a multi-year hiatus between seasons 3 and 4 leading to one of the most precipitous losses of goodwill I've ever had the displeasure of experiencing."
"Darker than Black"
"season 1 was a relatively interesting story about people called contractors. They're basically super powered individuals that have formed contracts with demons to gain super powers, but they dont know what the contract entails at the start and what the cost is and basically 99% of the time its something they despise."
"One Punch Man"
"latest season became widely mocked as “One Frame Man” because of the precipitous falloff in animation quality, which is uhhh not ideal for an action anime."
"Family Guy"
"You could tell the writers were straining to come up with any semblance of an episode when the chicken fight became a core running gag that got reused so many times after it already fell out of favor"
"It's gotta be Spongebob."
""Band Geeks" is one of the best episodes of any show ever. "A Pal for Gary" is one of the worst episodes of anything ever on TV. Not even exaggerating."
"Bravest Warriors"
"That was such a cool show in concept, it just felt like it never really went anywhere. I still randomly say "Webecca…" in a soft, dramatic voice sometimes"
"The Fairly OddParents."
"It used to be so witty and creative, but the moment they introduced characters like Sparky the magical dog, and Chloe, the show completely jumped the shark and ruined its original charm."
"Aggretsuko."
"I LOVED this show. I wish it had just ended after 3 seasons ( She should’ve stayed in OTM Girls and learned how to get over her fear. ). Season 4 was meh; season 5 was totally forgettable, introducing cool characters that were ultimately pointless"
"Voltron"
"Never listen to your fandom, you'll never please them all."
"Gargoyles season 3"
"Utter cr*p, one decent episode but the rest is blech"
"Star Vs The Forces of Evil"
"the last season was… unfortunate."
"Squidbillies"
"Sadly. Was hilarious. I do get why they switched the main character’s voice to Tracy Morgan after the scandal, but someone else might’ve been a better fit."
"The promised neverland"
"fell off pretty hard so I’ve heard"
"Wonder Egg Priority"
"It seemed like a promising and dramatic show with magical girl elements and real-world commentary. But it quickly went downhill. And then the studio promised a double-length episode to finish the season, but when it came out it was half recap. "
"the X-Men: The Animated Series"
"from the 90s changed to a cheaper animation studio mid-season, so all the characters looked weird and the plots were so bad."
"Clone High!"
"The first season was absolutely amazing very witty, clever, smart as well as very silly. When they brought it back a few years ago, it was awful and all the things that made it amazing were missing. The only thing that was good about it was the character Topher Bus."
"Uzumaki"
"We're talking a drop off going from Ep. 1 to Ep. 2."
"The Boondocks"
"after season 3 hurts me still."
"Ren and Stimpy"
"at least when you learn about its creator."
"Pinky and The Brain"
"being turned into Pinky, Elmyra and the Brain. Even the people who made the show knew it was a bad idea. “It’s what the network wants, why bother to complain.”"
"Dexter's Laboratory"
"First two seasons were awesome, but after Genndy Tartakovsky left, it became generic cartoon tries to be funny"
"Ben 10"
"had a stepdown in quality after one of its showrunners, I recall, passed away. It eventually got to the point after the four shows in the prime continuity and due to low toy sales, they had to fully reboot with a Teen Titans Go-like show. After that reboot ended years ago, there hasn't been any new content for Ben 10 other than a comic."
"Young Justice"
"The first two seasons were absolute peak. Season three was almost entirely horrid from a writing and general animation quality perspective. Season four started to get things back on track but it too had a lot of issues."
"Tom and Jerry"
"started as a hand-animated movie house cartoon classic, and ended as a horrible, bizarre shell of itself that was produced in Czechoslovakia."
"Real Ghostbusters"
"when it transitioned into Slimer and The Real Ghostbusters."
"Winx club"
"what the #*$@"
"Bee and Puppycat."
"Started with huge fanfare around it. Fans were hyped, wanted more. Show languished for quite some time with no updates, then got an OKish reboot by Netflix (where they weirdly redid the first few episodes and added new content.)"
"Twelve Forever"
"and it's not even a contest."
"The Simpsons"
"was comedy gold throughout the 1990s and then just became meh for years and years. No idea what it's like these days."
