Quotes / One-Hit Kill

Nu: From beyond the realm of souls and birth, I call upon the ur-sword to bring ruin upon my enemies. Perish.
Announcer: ASTRAL FINISH!

"What just happened? ... why am I dead?"
Penny Arcade Epic Legends of the Hierarchs: The Elemenstor Saga, "This Gear Is Striking So Fast You Can't Even See It"

"Surprise! You're Dead! (Hahaha)"
Faith No More, song of the same name

"They say the best weapon is one you never have to fire. I respectfully disagree. I prefer the weapon you only have to fire once."
Tony Stark, Iron Man

"If the game isn't over by turn four, something is VERY WRONG."
Edo Hrzic, on the "Devil Franken"note  deck archetype, before there was much available to counter it

"Boom! One hit, and three-thirds of your HP are gone!"
Kenny, Divekick

"What's the point of a life bar, if most of the enemies kill you in one hit?"
The Angry Video Game Nerd on the NES adaptation of Dragon's Lair

"One shot, one kill
No luck, pure skill"
Unknown

"Maybe I could take Gregor Clegane, dance around until he's so tired of hacking at me, he dropped his sword, get him off his feet somehow. But one misstep, and I'm dead."
Bronn, Game of Thrones

"You must never make 'multiple' cuts. Each must be singular in its beauty, no matter how many precede it. You must make your enemies weep with admiration, and likewise should your head be shorn off by such an object of beauty, you must do your best to shed tears of respect."
Meti's Sword Manual, Kill Six Billion Demons

"When decapitating an enemy, it is severe impoliteness to use more than one blow."
Meti's Sword Manual, Kill Six Billion Demons

"He's taken hostages. Bring him down with one shot!"
Your spotter, Silent Scope EX

"The moment it makes contact, it's won."
Marlow, Alien: Isolation

IT'S GAME OVER FOR YOU, MIRIAM!!! I WIN!!!!
Viv, White Dark Life, in the "Important Character Update" roleplay, after trying to smash Miriam with a pair of gigantic clock gears (completely unaware the Miriam escaped by burrowing underground)

"An arrow created using ancient technology. To be struck with one is to be consigned to oblivion in an instant. It deals devastating damage—even against Guardians."
Description for Ancient Arrows, The Legend of Zelda: Breath of the Wild

http://tvtropes.org/pmwiki/pmwiki.php/Quotes/OneHitKill