Just like Nutty and Petunia, Giggles' most frequent goof often involves her marking. In some episodes Giggles' marking isn't visible when it should be seen. This goof mostly takes place in the early episodes and stopped appearing after season 2, until Happy New Year aired. Her eyelashes used to frequently disappear too.
What the back of her head is suppose to look like.
Toothy's most reoccurring goof involves his teeth. Toothy is suppose to have large, gapped buckteeth, but he is often seen with small standard teeth instead. This goof appears quite often in the early series and even appears in the TV episode Take a Hike. Sometimes his teeth will switch from standard to gapped in the same episode.
How Toothy's teeth are suppose to look like.
The only pop-up to feature this goof.
One of the very rare times where this goof occurs after the TV series.
Lumpy debatably holds the most infamous reoccurring goof in the entire series, as his antlers switch positions in almost every single episode he appears in, they sometimes even switch in continuous shots (There have actually been a couple of instances where both of his antlers stick up). This goof carries through every season, but there are some instances of Lumpy going entire episodes without this goof occurring but this is usually when he barely has any screen time. One example of Lumpy having a lot of screen time and his antlers not switching is In Over Your Hedge. The show is also very inconsistent with his teeth, sometimes they're on his nose, or his mouth, sometimes it's both at once. His mouth can also appear from the end of his snout.
Even his starring pop-ups...
... can't make up their mind on those antlers.
Considering how this is the first time we see Lumpy, this may be how his antlers are suppose to be.
His right antler is pointing down...
... now up...
... down again...
... up ...
... and down...
... and surprise surprise, it's sticking up again.
He looks pretty awkward with both antlers up.
Teeth on nose.
Teeth in mouth
His teeth now stay in his mouth.
This episode has his teeth INSIDE his nose which is just disturbing.
Just like Giggles and Nutty, Petunia's reoccurring goof involves her head marking. It will usually either disappear or stretch all the way down the back of Petunia's head. Her eyelashes and tail would also occasionally disappear.
What the back of her head is suppose to look like.
Her tail marking is also gone.
Petunia's marking reaches the bottom of her head.
The ugliest design for Petunia's marking, ever.
Petunia without her eyelashes, though this is fixed later in the episode.
While this goof is hard to notice, it happens very often. The hammer and screwdriver in Handy's tool belt, tend to switch places with each other, sometimes in continuous shots. This goof even occurs in Handy's most recent appearance, A Handy Nanny. Also a minor goof occurs whenever his helmet pops up, his ears are missing, although there are exceptions. A minor goof that seems to happen with Handy is his nub stretching out whenever he wipes his head, which shouldn't be possible.
The first appearance of Handy's tool belt.
They swap spots already.
His tools swap places in the next following shots...
How Handy is supposed to look like with his ears visible.
Another rare instance of Handy with ears.
His nub is now long enough to have an elbow joint.
Nutty's reoccurring goofs involve his eye, his two lollipops, candy cane, and head marking. In numerous episodes the all-day sucker and the lollipop switch places on Nutty's cheeks, his lazy eye switches places with his good eye when it's always suppose to stay on the left, and his candy cane switches the direction it's facing. Similar to Lumpy, these goofs usually don't happen if Nutty doesn't have to much screen time in an episode. In every episode that uses old animation, Nutty's head marking is never visible from the back of his head with Icy You being the only exception.
All of his candy is in its correct spot.
All of the candy (except the apple) is inverted.
What why? Nutty didn't even shift his head in another direction, yet the lollipops switched anyway.
Lazy eye on the left.
Now it's one the right.
The candy cane switched positions.
What the back of his head is suppose to look like.
Nutty's marking visible from the back of his head in an old episode.
Missing head marking.
One of the rare instances of a characters marking disappearing in the TV series.
One of Sniffles' reoccurring errors involve his pocket protector switching places on his chest or disappearing. His other error is his snout changing lengths. While this mostly happened in the old episodes, in one very rare occasion, in a TV episode, Sniffles' snout is very long in one frame. Inthreeepisodes, his mouth appeared below his snout instead of at the tip. The tape on his glasses also disappears occasionally.
The length of his snout in earlier episodes.
Now it's small.
Sniffles' long snout in a TV episode.
Sniffles' mouth is always on the end of his snout...
You can see Sniffles' smile, but it's drawn wrong.
Russell actually has two goofs and they involve his hook and eyepatch. His eyepatch tends to switch between his two eyes and his hook switches which hand it's on. These goofs didn't happen as much in the older episodes and started appearing more and more during and after the TV series. On several occasions, his tail would also disappear or be placed on his back.
Lifty and Shifty's main goof lies in their pupils. This is mostly because the animators couldn't decide which kind of eyes suited the duo the best. This only counts as a goof if their circular pupils are used in the early episodes or if their pac-man pupils are used in the TV series.
One pupil is circular the other is pac-man shaped.
In Gems the Breaks, their pupils are circular only for the beginning of the episode.
From this point, their pupils are pac-man shaped for most of the episode.