Yeah they spoke both finnish and english. Well, Tatsurou spoke. Yukke shouted something random just once and I think it was in english.
And yes, his accent was pretty...Japanese
So sometimes it took a little while to guess what he said but mainly it was easy to follow!
He had studied just some basic things like " Haluatteko tanssia?!" (do you wanna dance) and kiitos (thank you).
And about english: my friend didn't understand it at all but I think it was very good! I thought they don't speak english. The best part was when Tatsu crossed his fingers (the audience followed the example) and then said: "I promise. We...will....come.....BACK." YAYY!
Oh and you said poor Yukke fell down! That's funny!
Btw I really hope they'll release some DVD, at least there was some camera around all the time and Tatsu filmed something too ^^
And that China-story was SAD!
Poor poor little boy!