Scroll down a bit on his nico-community page and there are links to his youtube channel, twitter account etc. No need to learn Japanese for that. :-)
I don't know how likely it is that he will respond to a message in English (or google translated into Japanese) though...
Btw, I watched my own run again. I couldn't help but notice how many places I had to stop or take hits, especially in stage 3 and 4. I know that was part of my routing and that there were good reasons for pretty much everything. However, that's not to say that one couldn't try harder and come up with ways to iron out some of those losses of momentum. It wouldn't surprise me if there were a few more seconds to be gained from just small optimizations that add up in the end.
I don't know how likely it is that he will respond to a message in English (or google translated into Japanese) though...
Btw, I watched my own run again. I couldn't help but notice how many places I had to stop or take hits, especially in stage 3 and 4. I know that was part of my routing and that there were good reasons for pretty much everything. However, that's not to say that one couldn't try harder and come up with ways to iron out some of those losses of momentum. It wouldn't surprise me if there were a few more seconds to be gained from just small optimizations that add up in the end.