Quick question about the Colossal Manhattans. I read over the PDFs on realms as I don't own either figure. Is there somewhere in their rules where it says they can't be the target of OW?

I believe in scenerio play the convention exclusive's "Powers can not be countered", but not when he is played as part of a force.

I don't know about the retail version.

The retail version cannot be outwitted when used as part of the force, I'm not sure but I'm pretty sure it works the same way.