[@RaeoftheLight]Lol

They are seperate beings that combine for battle

(Best example ever)
Goku and vegeta are two seperate people -> they do their little fusion dance -> they merge into one
[img]http://vignette4.wikia.nocookie.net/dragonball/images/e/e5/SSJ4_Vegeta_SSJ4_Goku_fuse_to_Gogetaz.gif/revision/latest?cb=20100823215325&path-prefix=es[/img]