Vortex Finish

The Vortex Finish (ボルテックフィニッシュ) is Kamen Rider Build and Kamen Rider Cross-Z's set of finishers. Each Full Bottle set has a variety of different finishers.

Build
After turning the crank of his Build Driver when transformed into any particular Best Match or Trial Form, Build can activate a finisher tied to those two Full Bottles.

Best Match=
 * RabbitTank:
 * Sento Kiryu version: Build dives underground to send a white energy chart flying up to the surface with the dotted line securing the enemy before leaping back up, and delivering a kick whilst riding the chart's line. According to Blood Stalk, this finisher has a Hazard Level of 3.2, and then 3.7 when Build attacks him out of anger.
 * Shinobu Katsuragi version: Build performs a Jumping Roundhouse Kick before becoming covered in red and blue energy then delivering a Flying Front Kick.

Cross-Z
Cross-Z Dragon= After turning the crank of his Build Driver after transforming, Cross-Z can activate the Dragonic Finish (ドラゴニックフィニッシュ). This attack has two variations:
 * Rider Kick: Cross-Z summons a blue and orange energy chinese dragon that flies behind him, then jumps up as the dragon breaths fire, sending him at the enemy, then delivers a roundhouse kick whilst his foot is covered in blue energy.
 * Rider Punch: Cross-Z coats his right hand in energy in the shape of a blue chinese dragon head, then delivers a punch.

Drill Crusher
The Drill Crusher's finisher is the Vortex Break (ボルテックブレイク), activated by plugging a Fullbottle into the Full Bottle Slot of the weapon.

Blade=
 * Blade: Build channels the energy of a Fullbottle and performs a powerful slash.
 * Organic:
 * Rabbit: The Drill Spiral Blade spins such that it creates a tornado before Build performs a red energy slash.
 * Gorilla: The Drill Spiral Blade cloaks itself in an energy projection that bears a striking resemblance to the Muscle Glove.
 * Ninjya: Purple energy Drill Spiral Blades are projected and spin violently around the Drill Crusher.
 * Kaizoku: The Drill Spiral Blade spins such that it creates an energy whirlpool before Build performs a double azure energy slash, or an energy whirlpool blast.
 * Unicorn: An energy projection resembling a unicorn's horn spins around the Drill Crusher as Build performs a powerful stab attack.
 * Inorganic:
 * Rocket: The Drill Spiral Blade surrounds itself with energy before detaching from the Connect Lancer and launching itself at the enemy like a rocket.

Hawk Gatlinger
The Hawk Gatlinger's finisher is the Full Bullet (フルバレット), activated by spinning the Revol-Magazine ten times. It surrounds itself and the wielder with a white energy spherical graph, trapping all enemies in mid-air before firing upon them all.

4Koma Ninpoutou
The 4Koma Ninpoutou has four different finishers, depending on how many times the Vortex Trigger is pulled; the panels light up in ascending order.
 * Clone Jutsu (分身の術): Build creates a number of clones of himself that attack together.
 * Fire Jutsu (火遁の術): Build delivers a flaming slash attack. While performing this attack, the 4 Koma Ninpoutou announces Blazing Slash (火炎斬り).
 * Wind Jutsu (風遁の術): Build creates a tornado around the blade. While performing this attack, the 4 Koma Ninpoutou announces Tornado Slash (竜巻斬り).
 * Stealth Jutsu (隠れ身の術): Build teleports a short distance away in a puff of smoke. While performing this attack, the 4Koma Ninpoutou announces Doron (ドロン), with a heavy drumbeat when he disappears and reappears.

Kaizoku Hassyar
The Kaizoku Hassyar's finisher is the Kaizoku Densya (海賊電車). After charging the Kaizoku Hassyar by pulling back the Build Arrow and holding it until it reaches the final tier, Build fires a green and azure energy train from the Kaizoku Hassyar that not only rams into the enemy, but shoots azure energy discs as well.

Beat Closer
The Beat Closer has three different Hit-Parade (ヒッパレー) finishers depending on how many times the Grip End Starter is pulled after inserting a Fullbottle.
 * Smash Slash (スマッシュスラッシュ): Cross-Z or Evol channels the energy of a Fullbottle in his Beat Closer, pulls the Grip End Starter one time and performs a powerful slash.
 * Dragon: Cross-Z Magma covers the Beat Closer's blade in flames and slashes the enemy.
 * Dragon (EvolBottle): Evol delivers a powerful slash covered in red and blue flames.
 * Million Slash (ミリオンスラッシュ): Cross-Z channels the energy of a Fullbottle in his Beat Closer, pulls the Grip End Starter two times and performs a powerful slash.
 * Lock: This finisher has two variations:
 * Cross-Z sends a dark blue fire stream at the enemy.
 * Cross-Z binds the enemy with energy chains.
 * Mega Slash (メガスラッシュ): Cross-Z channels the energy of a Fullbottle in his Beat Closer, pulls the Grip End Starter three times and performs a powerful slash.
 * Lock: Cross-Z strikes the enemy with the Beat Closer as it projects an energy version of the Bind Master Key.

Fullbottle Buster
By inserting up to four Fullbottles into side of the barrel of the Fullbottle Buster, it can activate special finishing moves:

One Fullbottle=
 * Fullbottle Break (フルボトルブレイク): Activated by inserting a single Fullbottle into the Fullbottle Buster.
 * Buster Cannon Mode:
 * Rabbit: Build fires a ball of red energy at the enemy.
 * Spider: Build fires a blast of purple energy that transforms into a web to trap the target.
 * Magnet: Build fires a blue energy magnet that pulls enemies towards each other to the point where they implode.
 * Dryer: Build fires a ball of red energy that transforms into a stream of heat which continuously burns the target.

Cross-Z Magma Knuckle
By plugging a Fullbottle into the top of the Magma Knuckle before pressing the Dragonic Igniter, Cross-Z can access the Volcanic Knuckle (ボルケニックナックル) attack, and empower the punches he delivers with it.
 * Taka: The Cross-Z Magma Knuckle projects orange energy hawk wings as Cross-Z uppercuts the enemy.
 * Dragon Magma: Cross-Z punches the enemy as the Cross-Z Magma Knuckle creates an energy projection of a dragon that pushes the target back.
 * Silver Dragon: Cross-Z uses the Cross-Z Magma Knuckle to deliver a powerful punch covered in silver flames that creates a large shockwave upon impact.

Blizzard Knuckle
By plugging a Fullbottle into the top of the Blizzard Knuckle before pressing the unnamed Ignitor, Cross-Z/Grease can perform the Glacial Knuckle (グレイシャルナックル).
 * Dragon: Cross-Z Magma punches the enemy as the incomplete Blizzard Knuckle creates an energy projection of a blizzard that freezes the target before launching them away.
 * North Blizzard:

Build Driver + Weapon
Build/Cross-Z can combine the powers of the Build Driver and a weapon to perform a powerful finisher.

Build Driver + Drill Crusher

 * Sparkling Finish/Vortex Break (スパークリングフィニッシュ/ボルテックブレイク): After plugging a Fullbottle into the Full Bottle Slot of the Drill Crusher, Build, in his RabbitTank Sparkling Form, can perform a powerful, bubbly finisher.
 * Blade: Build channels the energy of a Full Bottle in his Drill Crusher and performs a powerful slash.
 * Kabutomushi: The Drill Spiral Blade cloaks itself in an energy projection resembling a rhinoceros beetle's horn and performs a powerful, bubbly stab attack.

Combinations

 * Build (in his OctopusLight Form) and Cross-Z perform a combination of Build's Vortex Finish and Cross-Z's Mega Slash (with the Lock Fullbottle) to defeat Blood Stalk.
 * Build (in his RabbitTank Sparkling Form) and Cross-Z perform a combination of Build's Vortex Finish and Cross-Z's Million Slash (with the Lock Fullbottle) to defeat a Flying Smash Hazard.
 * Build (in his RabbitTank Sparkling Form) and Cross-Z Charge perform a combination of Build's Vortex Finish and Cross-Z Charge's Scrap Break.