Sadly I have to rate the interview process as poor: it was both adversarial and a sloppy. Kabam is a young company and it shows in their hiring processes.
I originally submitted via my professional network, but failed to speak live with my contact (friend of a friend) after multiple attempts (he was willing, but too busy). After a month I heard back from HR and had a phone screen (which was fine). I then quickly spoke with the hiring manager, who was great on the phone and a real draw.
It then took almost a full month to get interviews set up. This amounted to a series of 1:1 meetings, and then a presentation based on case study. (note that the case study was a week-long effort, not trivial.) The 1:1's went fine, but during the presentation the hiring manager's manager took over most of the interaction, and seemed to want to keep me on my heels. I expect probing questions, and am actually disappointed if I don't get at least a zinger or two; in this case the aggressive, unpleasant approach made me repeatedly think "why would I want to work in this person's organization?"
The final step was a Skype interview with one more individual who was not able to make the in person session. She was a no-show on the first scheduled slot. Two days later we spoke.
Overall, if I had received an offer I would not have accepted based on the combative tone set by the group head.