"Jackpot!" is a recurring phrase in the Devil May Cry series. Usually, it is said by the protagonist of an installment just before the main antagonist is finished off. The only exception from this rule is Devil May Cry 3, where it was also said by Vergil, although he was playing at the "good side" at the moment. In real life, a "jackpot" is the grand prize in gambling.
During the first cutscene when Trish enters the Devil May Cry shop, Dante says, "The way I figure it, in this business, a lot of your kind comes around. And if I kill each one that comes, eventually I should hit the jackpot sooner or later." It is the first time it is ever heard. The phrase is again said by Dante at the end of his third (and final) fight with Mundus. After Trish has arrived to aid him in battle, Dante shouts "Jackpot!" before releasing his over-powered charged shot.
Although no one ever says "Jackpot!" in this game, Dante says "Showtime!" before he rushes into battle with Arius. There is also a track called "Jackpot" when Dante beats the final boss.
This is possibly the most spectacular Jackpot in the series. In the end of the final fight with Arkham, Dante and Vergil first slice him with their swords, and after Ebony is smacked away from Dante's hand and caught by Vergil who (with Dante) spectacularly shoots him off.
- Arkham: "It can’t be! I cannot! Die!"
- Vergil: "I’ll try it your way for once."
- Dante: "Remember what we used to say?"
- Arkham: "Don’t do it!"
- Vergil & Dante: "JACKPOT!"
Chronologically, it is the first time it is said on-screen.
Also it should be noted that Jester once said "Bingo!" (in a scene where Dante strikes a controller with Rebellion), a term which is somewhat related to "jackpot".
This time the opportunity to say the phrase falls not on Dante (as he doesn't participate directly in the final battle with Sanctus Diabolica) but on Nero. He could possibly shout "Jackpot!" if the final blow is his DT-powered Buster. If the player chooses not to use Devil Trigger, Nero will say "Checkmate!" or "Bingo!" instead. Then the moment of impact will be repeated twice for dramatic effect.
In Devil May Cry 4 refrain, Nero does say "Jackpot" after he defeated Sanctus Diabolica with his Devil Bringer during the cutscene in Mission 10.
In the final, twelfth episode of The Animated Series, the demon Sid absorbs Abigail's power but later has it stripped from him, and in a last-ditch effort rushes at Dante. Dante says "Jackpot" before shooting him at point-blank range.
When Captain Blue gives Dante the V-Watch, Dante gains his DMC1 costume. Dante transforms by saying "Devil May Cry's a rockin' baby, yeah!" He then says "Alright, JACKPOT!"
Dante says "Jackpot" right before the final blast of his Million Dollars Hyper Combo; he also says "Jackpot.. yeah baby!" during one variation of his victory cut-scene.