In Update 1 of Tennis Zero, Chrollo and his team have introduced a brand-new style for players called the Jackpot. This is a Style that the Jackpot/Gambling Style heavily draws inspiration from: its other Sports Game, Basketball Zero, which features a lot of luck-based skills. So, if you are an ardent fan of Tennis Zero and want to get or know about the Jackpot Style, here is a detailed guide on it
Jackpot Style Unlock Guide
Similar to other existing Styles in Tennis Zero, the Jackpot Style is also acquired through the in-game gacha spinning system. To start spinning, reach the Style window by pressing the Styles option at the bottom of the Main Menu. Here, you can use either the Lucky Spins or the Default Spins to start rolling for the Jackpot Style. Although both are applicable, I recommend using Lucky Spins for significantly better odds. Also, before spinning, ensure you select the Jackpot Style under the Secret section to increase your chances of getting the Style by 10%. If chosen correctly, you will see a red dot adjacent to the Jackpot name. That's it! Now, keep spinning using the Lucky Spins until you get the Jackpot Style.

If nothing works even after spinning for a while, the pity system + preference system will kick in, providing the Style after 50 spins using the Lucky Tokens.
Jackpot Style Showcase - Tennis Zero
Below, I have explained all the skills and abilities of the Jackpot Style in Tennis Zero.
Normal Stat
- Dive - 80%
- Lob - 10%
- Speed - 80%
- SpinControl - 70%
- Serve - 75%
- Swing - 75%
- Wingspan- 40%
- Smash - 100%
Special Ability
- Roll the Dice for a random effect. If you get a 777 Jackpot, all your stats will be at max value, but if you land a bust, your stats will be severely downrated during the awakening phase.
For more on Tennis Zero, check out Tennis Zero Style Tier List - Roblox or Tennis Zero Wiki, Trello, and Style Guide