Prefacing (Skip to below for actual moment)
So about a decade ago, I was in the throes of Final Fantasy D6, the unauthorized fan indie RPG, before they switched to a 4 attribute 15 level system. I loved the original iteration of it. There was a blizzard that year so I had several days of boredom to contend with. I wrote all 30 levels worth of encounters for a world in which the apocalypse happened in 2012 because scientists were trying to figure out how to vaporize a single target with a nuclear bullet. They did something that messed with the way other dimensions interact with the earth, accidentally opened up a portal to the Farplane of the Final Fantasy series.
They were able to contain the threat, but the monsters instinctively knew the veil between the two dimensions was weakened, so they gradually began testing it. In the summer of the next year, all bets were off after a Bomb attacked Mall of America and it made national news. By last year a woman named Cornelia would accidentally summon an eidolon called Alexander and save New York City, which would be renamed Alexandria (any other locations of that name are of no consequence in the alternate timeline)
Gradually old techs fail, and new (alternate Final Fantasy largely "mist punk") technologies prevail such that there are now airships and swords are capable of competing with firearms and so on. Somehow many people notable today survived the intervening 66 years, the most relevant one to the story being Jackie Chan.
Crowning Moment
So the party's trudging along and they all knew out of character it that they'd likely meet real world people. One of my players is a little more in on it than the rest so he lets me have his character go berserk and get beat up by Jackie Chan. He comes to his senses, and they have a nice conversation. One of the moogles gives them mail inviting them to Cornelia's 86th birthday. They reply saying that Jackie Chan is still alive because they'd heard she was a fan. So of course she invites him too.
He comes. The party had made gifts for the party. One was a luggage, Some I can't remember, and the third was a jetpack. I had planned on having the bad guys interrupt the party, so they did. I put on this song and tell them "Ok, so there's these two imperial dreadnoughts spitting out swarms of Remora airships (fighter jet equivalents.) You can either do half damage to the swarms, or full damage to the dreadnoughts. Spells do full damage to both. Jackie Chan puts on the jet pack and is going around kicking the [expletive] out of people flying the Remoras. Every time you year a scream, he's doing full damage."
One of my players asked "Why's he doing full damage" Everyone else simultaneously "Because he's [expletive] Jackie Chan!"
