Unity interview questions

I applied online and was contacted by HR to schedule a phone call. After the call, I received a coding challenge to complete. I was invited for onsite after I submitted the coding challenge. They flew me to SF and took care of everything regarding stay/travel. The onsite was 4 rounds of tech interviews. All the people, including HR's and the engineers, were super nice and efficient. I had a good time while interviewing with Unity.

Was contacted on Linkedin by a recruiter. Visited next day to meet her, then the following day for an onsite with the hiring manager. After that, another onsite a week later with 2 employees.