Take an article, probably one of Samus's weapons, and replace it with ZSS's head. You would then, in the PSA, make it so that Samus's head is in every animation.
Small file size may make this a huge pain too.
I don't woory about that...
I havn't had any filesize probs...
I've mentioned my trick like 5 times already... but I'll mention it again...
create these files and put them in the pf directory:
dummy1.dat
dummy2.dat
border.dat
now open those in a hex editor and add 1 byte of '00' to them
save that and run brawl
there you go
~3GB file space cleared for ya