Noah Valley:  First, the first water fall you see, go right in front
and use zero`s upward freeze thingy then second jump and there is a rare
metal on the ledge. Second, I'm not sure of the exact location, but
there is a rock above you that stands out like a sore thumb. once you
have head part I, use mega man and jump into the rock above. it  will
shatter. There is a rare metal there.
Booster Forest: Use axl and copy the little
rolling thingy and save it till a little later.once yur at the first
place with the panels, drop to the bottom and have axl turn into the
roller thing.he rolls into a tiny hole and  tada, another rare metal.
Troia Base:Beat troia base twice while
staying on the hardest mode in the training things.You MUST NOT ever go
down a level or you do not get the metals.You can do this twice only
after you do it twice,you just get some  metal(like 700 or so).