[UPDATE]
Although Marco told us not to edit this mod, I did.
In Marco's version, you wouldn't get your weapons back when you transform back into the hero.
I changed that, so you will get them back when you transform back.
This is a replacement for
Marcopolo's Balverine transform mod.
To be clear about this: I just transferred his work to a new fmp, nothing more.
Hence all credits go to Marcopolo for this, I just made it easier to apply.
No more screwing around with the cutscene editor (sorry Baystone

), just load the fmp. (For the people who didn't know; before you had to apply the cutscene by hand, which was pretty complicated. Now its just; Start FE -> Load mod...).
How To:
To transform:
Go outside the guild,
hit (with your fists or sword) the left sign to transform, and don't 'esc' out of the cutscene.
To transform back:
Hit the right sign and this time 'esc' out of the cutscene.

[last note]
There could still be inventory problems with this mod, I haven't looked at that yet...