In this recent video, Pacquiao hits the punching bag with the same intensity he does with the southpaw stance, he uses orthodox stance and his right hand is just as powerful.
2:22
here he is using the buttterfly knife right handed
here he is playing darts both left and right handed
http://www.pacquiaovideo.com/2009/01/manny-pacquiao-is-ambidextrous-boxer.html
who are the other ambidextrous boxers?
it's called being left handed.
Left handed people are living in a righty society.
i'm left handed and im ambidexterious just like every other left handed person.