I think we should keep focused on coming up with innovative/creative questions that will touch on his feelings and most inner thoughts/memories, deeply. I believe, the more generic the question - the less likely this interview will even come to pass. I'm sure if we all put our minds to it and try really hard, we will come up with some great questions. If we were to ask a total of 10 question, I think the first 6-7 questions should be this fashion, leaving the last few as lighter questions perhaps a bit more fun or quirky...if that makes sense.
Just think - what's the common link...why are we all here? CT of course. Having said that, try thinking of questions that are relevant exclusively to that time period, and even before then. Mr. Mitsuda has experienced a lot of success since those days...most of the time folks in that position tend to forget where they came from, at least in some aspects if not completely. We are presenting ourselves as being from ChronoPendium, the ultimate CT page. Therefore let's give him a dose of nostalgia in a very unique and attentive way.