Unfortunately, so far this is impossible.
Thank you for replying to my question, Kitsu-chan!
I see, I readed something like that somewhere, but I wasn't sure if it was right or if it was up to date. Oh well, I guess that make my work easier, its not like it was that important I suppose, but it would have been great.
I was hoping it could be done mainly because of project M, I haven't played project M in a while, and I am not even sure if its true, but I think you cant copy Mewtwo and Marth with Kirby, am I wrong? I know the code used for project M isn't exactly public knowledge, but anyone knows how do they that?
One more question, as usual, my Mewtwo and Roy are clones from Lucario and Roy respectively, maybe I cant add Kirby transformations, but can you make it transform into other Kirby in the game? for example, if Kirby absorbs Roy, it turns into Marth Kirby, or something like that.
Thanks!