One of the most infamous Crime Lords in the entire Star Wars franchise, Jabba the Hutt, returns in Lego Star Wars: The Skywalker Saga. Han Solo owes a massive debt to him, and when it goes unpaid, Solo himself pays for it by being frozen in carbonite. Episode VI: Return of the Jedi gives players the chance to play as Jabba.
You need to reach Episode VI: Return of the Jedi, and you'll need to clear The Copa-Khetanna mission. You'll face Bobba Fett, then you'll have to fight your way to the top of the ship before being able to access R2-D2 to fight Jabba the Hutt. Complete this last fight to get the ability to unlock Jabba.
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Jabba will be available to you once you complete that mission. You can add him to your roster by purchasing him in the Extras tab of the Characters menu. It will cost you 500,000 Studs to buy him.
As a character, Jabba is not very appealing to look at or play as. Since he's not useful to get to areas that require special characters, we recommend not spending 500,000 Studs on him unless you have plenty to burn. That said, he makes a fine addition to any Character collection!
Wondering how to complete other Level Challenges? Check out How to complete the Prison Break challenge in LEGO Star Wars Skywalker Saga on Pro Game Guides.