I watch in english. I don't think I can deal with Keroro's Japanese voice for too long. He sounds like a chipmunk who smokes too much.

Mhmmm...Keroro's Japanese voice seems too childlike,for me.But it's quite nice.Italian one is more adult than Japanese,and when Keroro wants to be a serious soldier it becomes deep!
I don't heard English voices yet.

i used to call him Kululu, but thats his stage name rly, i found that out later on so ill stick wiv Kururu XD

i cant under stand wat there say so this

Since they both are basicly the same, I call him both. But mostly i call him Kururu.

I always called him Kururu. For me, Kululu isn't comfortable!!

I do both depending on the sitch.

i'm used to the English dubbed name

Kururu! The original name :)

Althoght sometimes i cal him kululu