Big fan of Pow-Pow and Fishbones? Here are all the ways you can unlock Jinx as a fighter in 2XKO, including free and paid options.
Jinx is one of the fighters available upon 2XKO's launch. However, she starts as a locked champion, and you still need to unlock her before you can start blowing up your enemies as the Loose Cannon. Here are all the ways you can unlock Jinx in 2XKO.
Unlocking Jinx in 2XKO for free
There are multiple ways to get Jinx for free in 2XKO.
New accounts are given one Champion Token upon release. You can use this to unlock Jinx and some of her basic cosmetics for free. Doing so will consume the Token.

If you've already used your Champion Unlock Token to claim another fighter, then the only remaining way to unlock Jinx for free is by using Credits. She costs 10,000 Credits for the same Fighter unlock, a Chroma, and a Taunt.
You can get credits through the Daily and Weekly missions.
How to unlock Jinx using premium currency
You can skip the grind by using premium 2XKO currency to get Jinx now.
You can directly buy her with 1,000 KO points (=USD $9.99, EUR €9.99, or GBP £8.50) This purchase will also unlock the same basic bundle that includes the Chroma and a Taunt.

You can also get KO Points and multiple Champion Tokens through any of the Starter Editions in the store. The Ultra tier of the Starter Edition pack comes with the Arcane Jinx cosmetic, along with Arcane Vi and Arcane Ekko, and extra customization options for your avatar.

She also has a Crime City Jinx bundle available in the store for 2,000 KO points. It's worth noting that this bundle does not come with the Jinx fighter or a Champion Token, so you will still have her separately.
If you've successfully unlocked Jinx, you should check out the Season 1 Battle Pass offerings, which include her Chromacrash skin and its Chromas.