Both English and Japanese videos of nuclear boy are created with cute but simple illustrations and easy explanations. However, there're some differences you can spot on them.
The voice of the narrator is much softer and bit rediculous in Japanese version while English one uses mechanical machine voice. There are not many changes in nuclear boy's facial expression in English version so I get the feeling that it's more serious and cold.
I personally prefer English version of it simply because it is made more seriously.
Certainly, it is important to teach children about this accident without scaring them and in an easiest-to-understand-way as much as possible. However, I'm afraid the Japanese nuclear boy is lack of seriousness and even children must understand that it is not a joke.
