Chris Bucholz: OK, so they all have rings of fire. That makes sense, actually. Scooby-Doo Villain: Isn't that cheating, all of them having the best power? Chris Bucholz: Technically their best power is probably friendship, but yes, all of them having fire rings is also pretty devastating. Scooby Doo Villain: How did they get the rings? Chris Bucholz: Have you angered any wizards lately? Scooby Doo Villain: Maybe? Chris Bucholz: Well, what about the government? How on board do you think they are with your little operation? Scooby Doo Villain: Not very. Chris Bucholz: Right. What I think has happened here is the government has developed powerful magic rings and given them to these teens, to harness their natural anti-smuggling powers. Scooby Doo Villain: You think that's more effective than sending the FBI or the DEA or a highly-trained team of military operators after me? Chris Bucholz: None of those have the power of friendship. Highly Trained Secret Agent: Breach on my signal. Remember to cooperate, share, and above all else, have fun in there.
Parodied in Dimension 20 when Kristen answers "Friendship" when Principal Aguefort asks if she remembers the greatest magic of all, and is met with a rant about how stupid this answer is before he reminds her the greatest magic is Chronomancy, just like he said on their first day in school.
Aguefort: Friends die all the time! What an insane-
Wyn from the web fiction serial Dimension Heroes refuses to team up with the other Dimensional Guardians until he falls under the control of a monster and is subsequently freed by them, realizing that the only way he'll be able to defeat the forces of darkness is to team up with them.
Mateo and Nigel of the web serial Driftless Wormhole enjoy hanging out, compensate for each other's weaknesses, help keep each other sane in the incredibly stressful situations they find themselves in, and wind up able to give each other the exact help they need in the end.
An episode of Game Grumps playthrough of Mario Party 8 has a moment where Jon says "Jon and Arin Win! They realize friendship's more important!" Followed by a great moment of Barry's editing. For many, it cemented Game Grumps as a show made two incredibly close friends, which has only been expanded upon with more of their friends and family becoming a part of the "Grump Family".
According to the 11/26 uStream, this along with the fanbase are what's keeping the cast of Everyman HYBRID sane. Compare it to many other Slender Man Mythos stories where, for the most part, the protagonists are alone against him.
This is the primary 'weapon' utilized by members of the Knights of Fandom.
In her review of Spice World, the only plus The Nostalgia Chick can give the Spice Girls is at least they were marketed as being friends. But they screwed that up in their reunion video when they weren't even looking at each other.
The Runaway Guys, when not at each other's throats, manage to pull of impressive feats of gaming with their teamwork. Chugga in particular inspires his teammates through his friendship speeches.
Played darkly straight. The usual tone of this trope's use in Sailor Nothing: Himei wakes up everyday and stops herself from slitting her wrists open by reminding herself that she has friends to live for.
When Himei is ready to lie down and die at the hands of her own Yamiko, Aki gets her up by saying, "Himei! If you die, you can't go on your date tomorrow!"
Survival of the Fittest plays this for drama, and also tragedy. In a story where the goal is to the the last one left standing and the main moral appears to be "don't trust anybody", friendship has no place and SOTF has no qualms with showing the reader exactly why. Version 0 ends with Sydney Morvran and his friends hiding in the school building. An accidentally dropped flashbang causes them all to go insane with paranoia and butcher each other, Syd using one of them as a human shield. Groups and friendships both tend to collapse in a dramatic fashion, especially once suspicion of killers starts to go around, and people often end up being slaughtered by others who were their closest colleagues before the game. Battle Royale, which SOTF is based on, used this trope.
In The Wall Will FallAlternate Reality Game, this was an integral part of defeating Cthulhu. Yes, thatCthulhu. The final battle involved players writing stories and songs around the theme of teamwork after selecting one of their own to challenge the Elder God directly. According to Word of God, the players hit the required amount of writing within two days of the announcement. This, plus their concern for the player being sent on what was effectively a Suicide Mission lead to the end of the game being changed in order to save them.
Chris Bucholz: OK, so they all have rings of fire. That makes sense, actually.