Heartwarming / Boy Girl Dog Cat Mouse Cheese

In general

• The titular characters' dynamic in general. In spite of their squabbles and all the problems they face, push comes to shove, they always have each others' backs and love each other to death.

Season 1

Boy's Friend

• After accidentally throwing his bobblehead at Tucker, Boy apologizes and realizes Tuck also being a bobblehead collector as well. Eventually, they start gushing about their love for bobbleheads. After having spent years without a friend with common interests as him ever since Ernie moved to Canada, it sure is nice to finally see Boy make a new friend out of it.
• After seeing Girl upset after K-Jam reluctantly opted out on joining them on the canoe trip due to forgetting that her mother's birthday was today, Boy decides to be her canoe partner while assuring Tucker that he would take him for the next time they all do so.

Cat Walkers

• After having made so much money treating every pet available in town, Cheese decides to generously give the money to Boy for that bobblehead he wanted so much. As touched as he is, Boy scoffs off the need for the bobblehead in favor of treating Dog instead, to the others' happiness.

Monster Butt

• As Boy became humiliated again from being naked and called "Butt Boy" again, Mouse immediately arrives to swiftly put on a pair of underwear on Boy, claiming that Boy has always had his back and vice-versa this time.
• A small one, but while the others are explaining what happened to Girl, Cheese briefly puts her hand on Boy to comfort him right before calling out Girl for forcing him to be the rear end of the costume.

Imitation Game

• After turning back to normal, Dog reconciles with Boy over acting snobby and inconsiderate throughout the episode.

Don't Have A Cow

• Just as Cheese is upset at having to give Delilah back to her family and Farmer Joe, Boy then comforts her and assures her that he and the others are already her family, with Girl adding that they have a connection.

Perfectly Dysfunctional

• Just as the Professor was about to fail Mouse due to the chicanery he experienced, the others stand up for Mouse and begged the Professor to change his mind, culminating with Cheese singing to prove their point. Amazed at their valiance, the Professor then decides to just give Mouse a D minus instead, which while not a satisfactory grade, at least allows Mouse to continue to be a scientist.
• Even after the whole ordeal ended with him getting a D minus and destroying the report, Mouse still thanks his siblings anyways as they engage in a Group Hug.

The Cheese Ball

• After Cheese melts due to the panic from smelling her gift from the Smiths, Boy gets the box off of her while he and the others stand up for her to the twins.
• After the Smiths leave a crying mess, Cheese felt appreciative of her siblings' efforts and thanked them, leading to a group hug between the six that also has Boy aweing and Cat purring in response. Then Dog accidentally reactivates the jetpack on Cheese...

The Cat Crusader

• After Cat defeats Gherkin and retrieves Girl's Magnifi-Girl comic book, the others show up and cheer Cat on for saving the day.

First Cheese on Mars

• The reason Mouse doesn't want Cheese or Dog to launch themselves to space is because he cares about them enough to want to protect them from any risks or danger in trying to do so. This prompts the two to relent, with Cheese sheepishly admitting that they weren't ready for space after all. Afterwards, the gang then hug each other.

Neighborhood Watchdog

• When Boy assures Dog that none of them could've taken Old Lady McGuire's camembert due to them having a "no cheese eating policy", Cheese replies that she also has a "no human eating policy" in return, leading to the two to high five each other.
• After hearing Dog get kidnapped and his walkie talkie connection getting cut, Cheese, having felt bad for the fact that Dog tried to protect her, decides to break out of her bubble by singing loudly and try to find her brother.
• Even as Dog tells her to get out of the basement to save herself from Mouse, Cheese refuses and opts to save Dog (and the camembert), even as she struggles to pull Dog out before the others arrive in their uniforms.

Curling Tail

• Upon most of the animals getting furious at them for causing trouble at the event, this causes Boy, Girl, and Cheese to confess to them that they finally understand how hard it is to live with having a tail and beg forgiveness for their transgressions in hopes that their animal siblings don't get banned from the event. With a simple meow from Cat, the other animals applaud at their speech, with Dog, Cat, and Mouse proud of the three for finally understanding. Too bad Boy unraveled all of that by destroying the statue.

Sparkcheeza

• After Cheese realizes how wrong she was for manipulating the others, she apologizes, only for Dog to state that they should be sorry instead for hurting her feelings and being unsupportive of her dreams. Then the others state that Cheese would be a famous star someday, but until then, they offer her to perform for them, which Cheese happily obliges (even when most of the others put on earplugs during the performance).

Putt Putt Pals

• Boy and Stevie hanging out with each other throughout the episode.
• Even after Stevie ended their friendship over a misconception of Boy breaking his promise and winning instead, Boy's siblings then hug him while stating "Best brother ever".
• The episode ending with Boy and Stevie leaving the trophy and bobbleheads on the tree that signified their short-lived bond.

Whistle to the Beat

• Girl assuring Boy that she and the others like him just the way he is.

Dog Unleashed

• After being saved by Dog, Wanda notes how nice and different he is from other dogs she's ever interacted with, and as a token of her appreciation, decides to go to city hall to make a note that Dog is definitely an exception to the leashes rule.

Suit Yourself

• The way Lady Burlington treats Dog throughout the entire episode: She notes how much of a gentleman he is with the suit he has on, refers to him as "Sir Dog", invites him inside her mansion for food and luxury, and plenty of other relaxing activities. If anything, that's the main reason why the fence keeps breaking down; if the others managed to fix it, then Dog would leave her side. Dog assures her that he had plenty of fun with her throughout the day, and when he reveals his shaved body, Lady Burlington notes that he's still a gentleman by heart. Even if later episodes don't openly acknowledge their dynamic, it is incredibly sweet that Lady Burlington considers Dog as one of her friends.
• The others relaxing at a picnic at sunset while enjoying the fancy life in the end, especially after everything they had to go through with the fence throughout the episode (though Cheese still got the short end of the stick thanks to a lobster).

Clickbait and Switch

• Boy noting to Girl that things were a lot better when they were doing things that were real. This prompts Girl to delete her video that would get more likes than Lila and just walks with Boy down the hallway. At least until Boy notes that class just started, to Girl's dismay.

Wedgie

• The episode ending with Cheese taking a group selfie with her siblings, even when it came right after her using her cuteness to manipulate them into pampering her for a year.

Season 2

Begins! Part 2

• The wedding celebration between the parents, thus finalizing the formation of the family.

Go Fetch

• Most of the family having fun throughout the episode thanks to the success of all the Fetch-a-Boings they've been giving to others.

The Room Mate

• Upon seeing Mouse's hypothetical pictures of the chaos that would ensue from her not being there, Girl realizes that family would fall apart without her, which Boy labels her as the glue that keeps the six grounded. Along with how obnoxious Gramps's snores are to her, it was enough to make Girl move back in to the girls' room and hang with the others full-time again.
• The reason Gramps even let Girl move in with him: Because she asked and, as one of his granddaughters, he loves her and would do anything to make all six of his grandkids happy.

Chili Overload

• Dog acting all cuddly and using his "puppy eyes" on Lady Burlington, who finds him adorable and rubs him for a bit before agreeing to try the new chili recipe.

X Marks the Spot

• As Mouse admits his chicanery and getting called out for it, he also adds in how he felt bad for doing so and apologizes. Cheese also apologizes as well for thinking that her followers are more important than her family while also briefly hugging Mouse.

Narwhal Day

• Turns out Dad makes up a holiday called "Narwhal Day" out of his love for narwhals, with the purpose of it being a day where the six could enjoy the day together as a family. The way the gang feel excited every time they celebrate it speaks volumes and proves his point.
• The Reveal that even as the holiday was made up, plenty of other people actually enjoy Narwhal Day as well, including the normally mean-spirited Smith twins and Margaret. Margaret even points out that she hasn't had much fun since she shut down 50 factories in one day.
• Mouse assuring Boy, Dog, and Cheese that they understood they were just looking out for them and invites them back to celebrate Narwhal Day.
• The episode ending with the gang celebrating and singing about Narwhal Day, with everyone else dancing to the music as well.

Bobblehead Heads

• Despite how lousy Boy was to him, Tucker decided to come back to the club and repair their friendship due to Cheese informing him of how upset Boy was.

Staycation

• After realizing how she upsetted the others, Cheese decided not to attend Posh's movie premiere and instead apologize to her family members for her actions, while adding that seeing them all have fun made her realize that Gramps's vacations are the best. Even after she lied to them and tried to ruin their fun, Gramps forgave Cheese and invites her to join them on the staycation while getting the others to join in on the hug.

The Swapper

• After turning back to normal, Mouse became embarrassed at his situation. The Professor then tells Mouse that he is amazed at the experiment, then calmly telling him that science could also be fun and to also chill out. Afterwards, the Professor awards Mouse with a "science trophy" (actually a bowling trophy), which amazes the latter and has him state that he would learn the fun part of science.

The Favour

• Girl attempts to ask Lena to take another picture of her with her siblings. Lena agreed to, only for her timer to go off and cause her to leave to her next appointment. Cheese then opted to do a group selfie instead.

Family Fun Fight

• After Boy falls down to the purple goop and accidentally drags Girl and the parents with him, Cheese then jumps in as well, shouting "Family Fun Time", and with Dog and Mouse joining as well, they all start playing with the goop like a happy family.

Grow Your Own

• Boy and most of the others deciding to help Stevie and Susie grow their vegetables so the twins can keep their standing with their parents even without appreciation in return, also citing that helping the two is satisfaction enough.

Tucked In

• While Boy tries to reconcile with him, Tucker notes that he doesn't have siblings like he does, with Girl, Cat, Mouse, and Cheese smiling out the window. Boy then realizes how lucky he is to have such a unique family.

The Hosts

• Dog comforting Boy after the latter panics from seeing a plate of the Smith twins.
• Despite having one-upping them for most of the episode, after Mrs. Smith punishes Stevie and Susie, Girl and most of the gang began feeling bad for their rivals. Not long after, Mrs. Smith eventually admits that Girl was right while Mr. Smith apologizes to the eight of them for making them compete nonstop while also pointing to his kids that cheating is still wrong.

No Mail's Land

• Dog and Jamie relaxing with the blanket, thus seemingly putting a halt in their rivalry.

Fix it Yourself

• Right after Boy saves Cat from the falling chandelier, Cheese discusses with Mouse that he was right about the fixing part being more important than the designing and apologizes, with Girl adding that while fixing things was fun, they should learn to listen to each other more. Then when Lady Burlington seems upset at the chandelier broken, Cheese apologizes to her as well. Lady Burlington seemingly forgives her on the grounds that everyone makes mistakes.

Pastime Paradise

• Stevie and Susie deciding to help Boy due to sharing his belief that the hideout should be for everyone.

No Boys Allowed

• Even as they get upset at the girls, the boys decide to just storm off while not informing the parents of their actions due to not wanting to ruin their day as well, citing that they think of others.
• After her daughters felt guilty and admit their actions toward the boys to her, instead of getting mad at them, Mom just states how proud she is of them for admitting and offers them a chance to invite the boys back. With their hesitance, Mom advises the girls that doing something nice for someone shows what they think of them.
• As a way to make it up to the boys, the girls design Boy's bobbleheads, make Dog a statue of himself out of bones, and Cat knocks on mouse's machines to make apples. When Mouse questions them of their kindness after how annoyed they were of them, Cheese replies of how guilty they were of treating them, with Girl then apologizing for their actions. This led to the boys forgiving them and the six of them hugging.
• The episode ending with the gang enjoying a boat ride with Cat riding on the dolphin pulling the boat.

The Spy Who Bugged Me

• Girl and Cheese standing up for Agent Average to Awesome. After being insulted by Cheese, Awesome apologizes to Average for mistreating him and opts to mend their friendship.

Video Game Pain

• After Boy saves the arcade from being demolished by Margaret, the others cheer for him, with Cheese even thanking him for his help and promptly apologizing for ruining things, only for Boy to quickly scoff it off, admitting that they were right about the newly update style of the arcade.

Season 3

K-Jam's Welcome Party

• Girl's siblings immediately welcoming K-Jam to the family.
• When K-Jam finds out from her father that the moving truck with their clothes and furniture wouldn't arrive for a few days, Girl offers her bestie to stay with them.
• After a pep talk with her siblings, Girl decides to go out of Skippy's and apologize to K-Jam. While seemingly tense and hesitant at first, K-Jam immediately forgives Girl and mends their friendship.

Gramps versus Mom

• After Gramps saves her from falling by taking the duck off her face and into his back, upon landing, Gramps and the gang attempt to apologize for their actions. Mom disregards their attempts, wanting to apologize instead for trying to change her father, realizing that it's Gramps' extreme lifestyle that is one of the things she loves about him. Boy and the others offer for the two to go on one more ride, which they agree to.
• After seeing Gramps and Mom take off on the hang gliders, the gang take awe in how happy things ended. Afterwards, Zeus laments that he doesn't have a gliding partner while Boy doesn't have a bingo partner. Turns out Zeus actually loves playing bingo as well, thus leading to him and Boy being partners while happily shouting "Bingo".

Multi Mouse

• After Mouse confessed to his siblings that he switched universes so he could be with a family who always wanted to be with him (even if they smothered him too much), Cheese admits that they would love to him more while Boy adds that they leave him alone because he always loves working in his lab. Mouse then tells them that it would be nice if they asked him first, which Girl complies with, leading to the six to embrace each other.
• Right after, Alt!Mouse confesses to his siblings that he would like a little space sometimes to do his own stuff. Alt!Girl admits to her and the others' smothering nature and promises to give their brother his alone time before hugging each other.
• The two Boys handshaking each other as the main gang were about to depart back to their home universe, with Boy stating it was nice meeting their alternate selves.

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