Audio Engineer/Post Production/Sound Designer - Intern applicants have rated the interview process at PSYONIX with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 66.7% positive. This is according to Glassdoor user ratings.
Application online, and was given a written test and sound design test to do within about a week. Didn't do a phone call prior to receiving the test. Very receptive and quick to respond to questions over email though.