あははっ♪
なんとなく動いてるｗ
難しいけど楽しい

*laugh* ♪
Somehow she's moving, lol
It was hard, but fun

Not sure what "zuncha" means, but it's what Midori is saying in the animation. It seems to bring up various songs and dances, but I can't see a clear meaning for it. It doesn't appear in my onomatopoeia dictionaries either.