Marina is accepted into Sharko's family.
- "King Neptunes Court", where Sharko busts into Neptune's palace and proceeds to kick the asses of King Neptune and his army of Orcas to save the mermaid he loves from an unloved marriage.
- The ending of the episode "A Tale of Two Legs". Sharko is aware of Marina holding a photo of her parents (a sailor and a mermaid), leading to this beatiful shot that happens in a sunset
◊. - The ending of the episode "Birthday Party" in which Sharko gives Marina the necklace that she dreamed of Sharko giving her, and then he is rewarded by receiving a kiss. Doubly heartwarming by the last few seconds of the episode where they walk back home in an embrace during a sunset.
- During the episode of "Sharko and his Folks", Sharko attempts to present Marina with an engagement ring, however, his parents unexpectedly arrive. Unfortunately, they do not like the idea of their son being engaged to a non-shark. Not wanting to disappoint his parents, he pretends to be in love with a female shark (who is actually Zig in a Shark disguise). But when the truth is spilled, he stops pretending and tearfully gives the ring to Marina, which she happily accepts and embrace in reconciliation. Seeing how the two are in love with each other, Sharko's parents gladly accept the union.
- At the beginning of "Bernie Moves House", Zig breaks his relationship with Bernie, so the latter goes to make a new house away from Zig on the island that recently appeared near the one Zig lives on. Later, the new island begins to sink into the sea, destroying Bernie's house as he enters it to salvage whatever he can, and causing him to be sucked into a whirlpool. Realizing this, Zig uses a wired blowgun with an urchin to catches Bernie and then applies CPR to him just in time to save his life, leading to both of them making up in a tearful hug.
- In "Cold Snap" after getting rid of the polar bear, Sharko and Zig share a victory ceremony, with golden belt and everything. But then Zig ruins it by going back to capturing Marina.
- Anytime in Season 2 in which there's a flashback to Zig's memories with his adoptive gorilla mother. It even shows that she was aware of his ravenous appetite when he was but a baby, but despite the difficulties that caused, she loved him back all the same. One episode even pushed Zig's Kindness Button by causing him to stop a scheme just so he could have his beloved mother's headband.
- Heck, all the flashback moments for the most part, showing Sharko and Zig as good friends, despite showing that their rivalry was inevitable. Even Sharko and Zig's moms hung out! It's worth noting that after episode-long flashbacks, the our four main leads are always put in a good mood.
- One Season 2 episode involves Bertie's sudden crush on Marina's (now sapient from here on out) star. Sure, it causes Marina and Sharko to search for her and Zig to take advantage of the situation, but they're quite sweet together. And after they have to come apart, Marina allows them to continue the relationship anyway!
- The Season 3 episode, "Sharko My Hero", involves an adorably precocious swordfish child that idolizes Sharko quite a bit. Sure, it goes south when his efforts lead to the cruise ship everybody's on to receive SIGNIFIGANT damages and break the poor kid's heart when Sharko lashes out for that, but afterwards, Sharko wastes NO time rescuing him during one of Zig's schemes to eat Marina, as well as the two teaming up against the hyena.
- The ending has said kid heavily implied to become Sharko's apprentice or, at least, a great friend.
- In fact, Season 3 has quite a few moments involving Sharko that show that he's mellowed out considerably around other people, wasting no time allowing his more Real Men Wear Pink tendencies to show and even spend time with the local kids (like one episode ending with him happily playing with a little girl and their toys. That being said, he's this if you're name isn't Zig...
- Sure, the reason that Sharky (from "The Rival") tormented Sharko was kinda weak, but after he lets the beans spill and causes Sharko to have a guilt-induced tearful breakdown, his next interaction with him is to bury the hatchet. It even ends with them laughing it out when Sharky does the same food-trick that Sharko tormented him with to him, AFTER they teamed up to stop Zig, making them even.
- In "The Mermaid's Feast" Sharko is clearly panicked when he sees Marina trying to eat Zig and Bernie (no, you didn't read it wrong), and even after all trouble Zig and Bernie caused he rushes to cook something to satiate Marina's hunger and save them both.
- "Zig and Sharko on the Rocks" has a rather cute beginning where the two start a business together serving fancy fruit drinks. It wasn't even one of Zig's schemes; the two started a business because they were having fun with it.
- The whole adventure began due to Zig noticing Sharko being dehydrated and gave him some lemonade.
