At last, here it is! This was a video that took almost 4 years to make and is the distillation of about 150 hours' worth of footage. But it's finally finished, and so you'll get to see every Final Smash in Super Smash Bros. Ultimate in one video! And all of them were taken from real matches played online, not just some demonstration in Training Mode. (I was not a participant in all of them though.)
Every clip will demonstrate at least one KO from the Final Smash, and they are arranged in order of the roster itself, from left to right and then from top to bottom. As Super Smash Bros. Ultimate itself orders them based on their debut in the series, that is the theme of how these are ordered too.
On the top left corner, you'll see that I put up the name of the character and his, her, its, or their Final Smash. For ones provided to me from other people, they are credited on the top right corner, just below the timer.
Ryu, Ken, and Pyra & Mythra get two clips, as they have two Final Smashes each. Hence, there were 89 clips in all.
Here is the list--there won't be timestamps here, as it's very late as of when I'm writing this description because Sora wasn't made available until the evening in the Pacific Time Zone. Still, I had it better than all of the other North American time zones except for those in Alaska:
Mario - Mario Finale
Donkey Kong - Jungle Rush
Link - Ancient Bow and Arrow
Samus - Zero Laser
Dark Samus - Phazon Laser
Yoshi - Stampede!
Kirby - Ultra Sword
Fox - Team Star Fox
Pikachu - Volt Tackle
Luigi - Poltergust G-00
Ness - PK Starstorm
Captain Falcon - Blue Falcon
Jigglypuff - Puff Up
Peach - Peach Blossom
Daisy - Daisy Blossom
Bowser - Giga Bowser Punch
Ice Climbers - Iceberg
Sheik - Sheikah Dance
Zelda - Triforce of Wisdom
Dr. Mario - Doctor Finale
Pichu - Volt Tackle
Falco - Team Star Fox
Marth - Critical Hit
Lucina - Critical Hit
Young Link - Triforce Slash
Ganondorf - Ganon, The Demon King
Mewtwo - Psystrike
Roy - Critical Hit
Chrom - Awakening Aether
Mr. Game & Watch - Octopus
Meta Knight - Darkness Illusion
Pit - Lightning Chariot
Dark Pit - Dark Pit Staff
Zero Suit Samus - Zero Laser
Wario - Wario-Man
Snake - Covering Fire
Ike - Great Aether
Pokémon Trainer - Triple Finish
Diddy Kong - Hyper Rocketbarrel
Lucas - PK Starstorm
Sonic - Super Sonic
King Dedede - Dede-rush
Olimar - End of Day
Lucario - Aura Storm
R.O.B. - Guided Robo Beam
Toon Link - Triforce Slash
Wolf - Team Star Wolf
Villager - Dream Home
Mega Man - Mega Legends
Wii Fit Trainer - Wii Fit
Rosalina & Luma - Grand Star
Little Mac - Giga Mac Rush
Greninja - Secret Ninja Attack
Mii Brawler - Omega Blitz
Mii Swordfighter - Final Edge
Mii Gunner - Full Blast
Palutena - Black Hole Laser
PAC-MAN - Super PAC-MAN
Robin - Pair Up
Shulk - Chain Attack
Bowser Jr. - Shadow Mario Paint
Duck Hunt - NES Zapper Posse
Ryu - Shin Shoryuken
Ryu - Shinku Hadoken
Ken - Shippu Jinraikyaku
Ken - Shinryuken
Cloud - Omnislash
Corrin - Torrential Roar
Bayonetta - Infernal Climax
Inkling - Killer Wail
Ridley - Plasma Scream
Simon - Grand Cross
Richter - Grand Cross
King K. Rool - Blast-o-Matic
Isabelle - Dream Town Hall
Incineroar - Max Malicious Moonsault
Piranha Plant - Petey Piranha
Joker - All-Out Attack
Hero - Gigaslash
Banjo-Kazooie - The Mighty Jinjonator
Terry - Triple Wolf
Byleth - Progenitor God Ruptured Heaven
Min Min - ARMS Rush
Steve - House of Boom
Sephiroth - Supernova
Pyra - Burning Sword
Mythra - Sacred Arrow
Kazuya - Final Blaster
Sora - Sealing the Keyhole
You'll see that I went through a lot of trouble to get a variety of stages and playstyles. I also tried to incorporate as many means of obtaining the Final Smash as possible. In addition to breaking the Smash Ball, you'll also see them obtained via FS Meter, the Pity Smash, and even the doodle Smash Ball drawn by Nikki. Unfortunately, I could not secure a good clip of a Final Smash obtained via Victini, so you won't be seeing that.
I also put in as many elements new to Ultimate as possible, such as characters and stages. It's to let you know that this is SSBU, not a previous Smash Bros. game.
The next SSBU Montage I'll put up is the Assist Trophy Montage. I can't say when because I don't know, but I am almost finished with it! I also have a Screen KO Montage in the works