Best way to prepare for a design interview

[marvinhawkins]

Good news, I just survived (I think) the design test phase of the job application process with a game studio. I have a phone interview lined up next week. My question: What is the best way to prepare for the interview?

The way I see it, I can spend my time:

Revisiting the test/my resume to anticipate questions they may have
Polish up my demo material. ( I assume they've seen it, but this person may not have)
Play more of their games and take notes(I presume there will be questions)

Any insight would be super helpful. Thanks!