The phrase "final kill" refers to the last action or attack that results in an enemy or opponent being defeated or killed in a game, sport, or any competitive activity. Full definition
He is now most known for his insane victory royale final kills. (gamingintel.com)
While the art style is completely different in Samurai II: Vengeance than it is in Shadowgun, going for a more anime - style of art, the game itself is hack n» slash at it's finest where you can break out combos against multiple enemies and even get some slow motion final killing blow action in there as well. (droidgamers.com)
The most popular version that is practiced is called the Baka Dhyanasana which looks like a crane meditating in stillness, concentrating on its prey and waiting for the final kill. (yogicwayoflife.com)