First, I just want to say this post has spoilers related to Kamen Rider 555; if you have not seen it and intend to, I wouldn't suggest reading this.
With that said, I'll try to be as generic as possible.
The character has two alternate forms he can assume. For the majority of the series, no one knows about his second alternate form, and he never uses it until then.
The first alternate form requires a focus (the belt he uses to transform), uses Gestures, and is occasionally stolen by others (bad guys) or used/borrowed by other characters/given to other characters for a short period of time for plot reasons. Because of the latter, I gave it "Usable on others".
My main concern is that, his second alternate form, does not have those aspects, and is more an innate part of him. Should I give him two separate multiforms, even though that would increase the cost?
I'm very much new to Hero System, so I don't know what the most logical way to go about this is.
Another slightly related question is that is that the first alternate form has two forms of it's own it can assume--should I make the main character's multipower reflect 4 alternate forms, or give a seperate multiform to the first alternate form (which doesn't seem right to me, but). It could also be noted that the 2 additional forms require separate foci.
and finally, is there any limitation or the like that can reflect that he has to return to his true form before he can change between those two alternate forms? Or should I say that, story wise, the amount of time it takes is probably just a half phase anyway?
Thanks for your help, everyone.