I attended what they call Super-Saturday for their summer internship. It was mixed with 4 rounds. 2 group activites, 1 interview with their ceo, and 1 technical skill interview with a manager in the department. It was a long day but I personally found it to be fun and very different from interviews I have done for internships.

Depending on your role, you will interview multiple people. The first interview was very general basic interview questions, asking about projects, resume specific questions. Each stage take the time to talk about relevant experiences from your resume and how it applies to what role you are interviewing for.