G-Mode interview questions

I first met them at a career conference. Then they called me for the first official interview at their office in Shinagawa Seaside, Tokyo. A manager and a technical leader (not sure) interviewed me. I believe it was "Good-cop, Bad-cop" style interview. Because the manager acted rude and impatient while the technical person seemed OK. Asked me about my current job, reasons for changing and reviewed the games I built by myself. While all this was going on, the Bad-cop was more active than the Good-cop, which resulted in a more serious and uncomfortable interview. If it weren't a Good-cop, Bad-cop style interview then I can be sure they weren't much interested in me from the beginning itself. Then came a simple programming question (In JAPANESE) and that's where I failed when I couldn't read the kanjis. They already knew about my Japanese level, being just less than 1 year in Japan. But it was my problem I guess. But then something really good happened, the Good-cop searched for a similar question (recursive programming) for me in English and asked me to solve and I did it (2 minutes). 3days later I get informed that I am not selected because of Japanese reading ability. The whole interview was in Japanese though. PS - I am still thankful that they called me for an interview at their office, given my Japanese level. Although I showed so much passion with all my work, it din't work out because speaking is just not enough.