shapeshift and partial activation

[feywulf]

Can shapeshift be partially turned on to represent shifting shape part way?

For example, if there was a mutant named Mr Blue with one "super power" which makes his skin blue instead of normal human color, and he bought it at the basic level 1 form visual change, could he partially turn his power on and be 50% blue, or would he have to buy an advatnage or increased number of forms adder to get the option of intermediate shapeshifting?

If he would have to buy something extra, what would that extra thing be?

[Steve Long]

I think that’s up to the GM ultimately, based on special effects, common sense, and dramatic sense. But generally speaking I don’t see why a character shouldn’t be allowed to be “half blue” as you describe — much in the same way a character with an EB 10d6 could choose to use only 5d6.