Due to Jacky's short range, she isn't ideal for extremely open maps such as Purple Paradise in Bounty, where long-ranged Brawlers will outrange her and fend Jacky off. If playing Jacky on an open map, use her Hardy Hard Hat Star Power because she can rush enemies and dodge their shots, and she can withstand more damage. Her Counter Crush Star Power is less useful since its range won't be enough to defeat long-ranged Brawlers from a range, and is used to engage in close-ranged combat.
In Showdown, Jacky's circular area damage mechanics along with her high damage is useful in some maps to destroy large groups of Power Cube Boxes in maps like Feast or Famine, Dark Passage, Two Thousand Lakes and Acid Lakes. However, since her range is short like other heavyweights, she should prioritize getting Power Cubes and should avoid immediate conflict with other Brawlers.
In Brawl Ball, if an enemy holding the Ball gets caught in her Super, the Ball drops. This allows teammates to quickly steal the Ball or prevent an enemy from scoring. In addition, Jacky has a high damage output, high health, and a fast movement speed, which is better justified with her Pneumatic Booster Gadget, making Jacky very viable in this event.
Jacky has the same movement speed as other heavyweights. This means that she can catch up to Brawlers that are escaping from her. If she has her Pneumatic Booster Gadget, this can be useful when chasing other fast Brawlers like Max and will help in game modes like Brawl Ball, Bounty and Showdown. With her high health as well, she can rush enemies and defeat them easily. However, be wary of slowing Gadgets and Supers like Bea's and Emz's Super since they will slow Jacky down, making them outrange Jacky.
Recommended Build
The quick burst of speed from her Pneumatic Booster Gadget is helpful to position Jacky quickly, escape in dangerous situations or when low on health, hunt enemies down, or secure vital items like Bolts in Siege or Gems in Gem Grab.
Strategies
Jacky can use her Super to pull in enemies before using her attack since she requires to be close to enemies to damage them. Note that her ammo won't recharge during her Super, so make sure to reload all your ammo before you use her Super. Jacky's Super can also be used to interrupt potentially dangerous Supers (like Carl's or Frank's), or to drag away enemies from the goal in Brawl Ball to her. Pairing her with a Brawler that deals area damage is very effective when you use her Super, like Dynamike. First, pull the enemies in with your Super. Then, the other Brawler can attack the pulled in enemies with their Super, dealing massive damage and leading to a potential team-wipe, which can be devastating to enemies.
Other
Jacky's short range limits her offensive capabilities, but she has enough range to attack enemies that are at most a tile behind walls, which she can use to her advantage by attacking enemies behind walls. This strictly limits throwers that can otherwise take cover behind walls.
Jacky's attack circles around her, which means that she can attack behind her, so if an enemy approaches you from behind, you can still hit them, as long as they are close to you. However, keep in mind that her attack is instantaneous, so you cannot run to extend your range.
Jacky's attack is unique; auto-aiming or manually aiming renders the same attack direction and range. Because of this, players can focus on other aspects of the match such as dodging attacks and positioning, although players can still aim to see the attack range when they need to.
Jacky, despite being a tank, can't outmatch other tanks. This is because she reloads rather slowly and doesn't deal enough damage to eliminate such Brawlers with three ammo. Since all other heavyweights reload faster and/or deal more damage than her (like Bull), she can neither defeat heavyweights in three shots nor can she reload fast enough to get a fourth one before getting eliminated. When facing Bull, Shelly, or Darryl, try to stay out of their range as much as possible while attacking them. Using your Pneumatic Booster Gadget to escape from them is also possible.
Jacky should focus on picking on low to medium health Brawlers or low-damaging and slow-reloading ones. If a Brawler reloads slower or deals less damage, Jacky can eliminate them easily as she has high health and high health and can withstand three to five of their shots. In addition, make sure that the enemy has exhausted all their ammo so you can get close to them without taking major damage from being out-ranged.
When trying to pull an enemy with your Super, try to drag the joystick to know if the enemy is in your Super range or not.
Remember that Jacky does have a 1.8 second reload speed, so after attacking or defeating an enemy, you would want to stay out of the battle and heal up or reload your ammo, instead of going too aggressive on enemies.
Changelog
17/03/20 Jacky was added to the game. Jacky's facial animations were slightly tweaked.
25/03/20 Jacky's Hardy Hard Hat Star Power was added.
26/03/20 Jacky's main attack damage was decreased to 1200 (from 1300) and delay between attacks was increased by 25%. Her Pneumatic Booster Gadget speed boost was decreased to 30% (from 38%).
07/04/20 Jacky's health was decreased to 5200 (from 5500). Fixed a bug that sometimes allowed Jacky to kick the ball in Brawl Ball while using her Super.
12/06/20 The Constructor Jacky skin was added.
16/06/20 Jacky's Pneumatic Booster Gadget charges were decreased to 2 (from 3).
02/07/20 Jacky's Pneumatic Booster Gadget charges were increased to 3 (from 2). Jacky's health was decreased to 5000 (from 5200). Her Pneumatic Booster Gadget speed boost was decreased to 20% (from 30%).
07/08/20 The Ultra Driller Jacky skin was added.
10/09/20 Jacky's Counter Crush Star Power radius was increased by 50%.
15/12/20 Jacky's main attack damage was increased to 1280 (from 1200). Her Counter Crush Star Power efficiency was increased to 30% (from 15%).
27/01/21 Jacky's Counter Crush no longer triggers an opposing Jacky's Counter Crush to remove damage loops. Jacky and Constructor Jacky's received facial animations.
15/03/21 Jacky's walking effects were slightly reworked.
07/04/21 Jacky's Counter Crush Star Power radius was increased by 33%.
16/06/21 Jacky gained a Trait where she can now charge her Super from receiving damage. Her Hardy Hard Hat Star Power damage reduction was decreased to 10% (from 15%).
17/06/21 The Super charge rate from her Trait was decreased to 20% (from 30%).
21/06/21 The Jet Ski Jacky skin was added. It was featured as a Power League exclusive skin for Brawl Pass Season 7.
25/08/21 The Super charge rate from her Trait is now based on Jacky's max health.
28/09/21 Jacky's Super activation delay was removed. Jacky's Super no longer stops her from moving and she can attack earlier after using it.
30/09/21 Jacky's Hardy Hard Hat Star Power damage reduction was increased to 15% (from 10%). Jacky's health was decreased to 4600 (from 5000). Jacky's main attack damage was decreased to 1160 (from 1280). The number of hits necessary to charge Jacky's Super was increased to 5 hits (from 4).
27/10/21 Jacky's health was increased to 5000 (from 4600). The number of hits necessary to charge Jacky's Super was decreased to 4 hits (from 5). Jacky's Super no longer provides her damage reduction. Jacky's class was changed to Tank (from Heavyweight).
16/12/21 Jacky's True Silver and True Gold skins were added. Fixed an issue where Jacky was doing 1 damage at the very edge of her attack.
21/12/21 The Gift Express Jacky skin was added. It was featured as a Brawlidays 2021 skin.
01/03/22 Jacky's Hardy Hard Hat Star Power damage reduction was increased to 20% (from 15%).
27/04/22 Jacky's Rebuild Gadget was added.
29/07/22 The Jacky Cooky skin was added. It was featured as a BT21 skin.
31/08/22 Jacky's main attack damage was increased to 1240 (from 1160).
12/12/22 Jet Ski Jacky's main attack visual effects were slightly reworked. Jacky's Counter Crush Star Power visual effects when she's damaged were slightly reworked.
25/04/23 Jet Ski Jacky now costs 149 Gems (from 25000 Star Points).
15/08/23 Jacky's Pneumatic Booster Gadget speed boost was increased to 25% (from 20%), and its duration was increased to 4 seconds (from 3).
05/09/23 All Brawlers' health and damage were increased from 5% to 10% with each Power Level.
22/09/23 Jacky's Seismic Event Hypercharge was added.
24/10/23 Fixed an issue with tooltips on upgrading Jacky. Jacky's flavor text was changed from "Jacky works her Jackhammer to shake up the ground and nearby enemies. Her Super pulls in nearby foes, leaving them in the dust!" to "Jacky is a miner who can't resist mouthing off about her wild work experiences using very colorful language! Luckily, the bad words are drowned out by the noise of her jackhammer"
27/02/24 Jacky Seismic Event Hypercharge shield boost was increased to 25% (from 15%). Jacky Seismic Event Hypercharge damage boost was decreased to 5% (from 25%). All Brawlers' Hypercharges duration can no longer be extended.
23/04/24 The Wave Hopper Jacky skin was added. It was featured as a Ranked exclusive skin.