I'm just looking at the WatX Multiple Man and noticed this:

AH, BUT WHICH ONE AM I?: The first copy of Mysterio on your force costs 70 points and begins the game on the click #1 that appears after two consecutive (red) KO clicks. Additional copies of this character on your force cost 15 points each and begin the game on the click #1 that appears after the (gold) KO. Mysterio is considered 70 points for all game effects except victory points.

MULTIPLE MULTIPLE MEN: The first copy of Multiple Man on your force costs 75 points and begins the game on the click #1 that appears after a (red) KO click. Additional copies of this character on your force cost 25 points each and begin the game on the click #1 that appears after a (orange) KO click.

Madrox doesn't have that line telling us about point values, so for purposes of Mastermind, how are we to figure out how many points Multiple Man is without clicking down the dial?

I would like to know the answer to this as well.

You are supposed to know and are expected to not lie.

Which multiple man is which must be kept track of by the players, at least by the player playing him. If neither player can't remember, call the judge over and ask him to check for you.