[neverending]

I don't think a lot of the kaiju movies are meant to scare anyone- the protagonists are children and the action is cartoonish. They're children's movies. However, I think some can be considered horror movies, particularly Gojira and some of the other early productions. Also, the scale of violence can be considered- how much destruction is there? Destroy All Monsters would count, as would Godzilla Vs. the Smog Monster.