post rumors and theories about this monstrosity here.
feel free to use you imagination.

I love Anti-forms ability when your in it. Anti-glide is so cool.

Oh yeah, one more thing, you change into it for "Abusing your drive capibilites, thank god it goes back to 0 when you get a new form, and goes down -10 when using Final.

Ani-Form (also known as heartless sora) is sora becoming ALMOST a complete heartless as, he does not use a key blade and is completely covered in pitch black darkness. As final-form resembles a nobody, anti-form resembles a heartless. Anti-form may be stupid as it can't pick any thing up or use magic and walks n all fours but it can use abilities. (anti-glide etc.) For an unknown reason, using valor and wisdom form raises the percent of anti-form accruing but master does not to any thing to the counter. Final-form lowers that counter for another unknown reason. Anti-form has lowered defense but raised attack and is quite quick.
Anti-form still remains a mystery. I hope its explained in the next kingdom hearts.........
~Hero Kirby's imagination

Here are some facts about Anti-Form;

Master and Limit forms raise the chance more than Valor and Wisdom does.
Anti-Form can pick up Munnies. And items.
If someone calls it Heartless Sora, it's fake. Anti-Form is only a punishment for constantly driving in battles. Outside of battle, Anti-Form never comes. In a theory Anti-Form is a heartless, because Final Form as a nobody form skips it, but it's just a theory.


Now, let's see what I will have to correct next.

If Anti-Form is the heartless form, then wouldn't Wisdom form call it more since it gets power by exterminating heartless? Well, I guess that doesn't make much sense, so, never mind.

i just noticed some more things about anti-form...
like donald pisses himself when he sees it
[/lie]

What's Anti-Glide? Is that just the move it uses when you press square []?

Yeah, it happens when you press
It is called Anti-Glide, it says so in my guide that gives attacks about the forms and characters.