How do you get anti on your drive menu on kingdom hearts 2 without cheats

You cannot get Anit-form in your drive menu without cheats. But I can give you tips on how to use Anti-form. Each time you use Valor, Wisdom, or Master form you obtain 1 Anti-point while transforming into Anti-form decreases your Anti-points by 4 and Using Final Form decreases your Anti-points by 10. There is no way to check how many Anti-points you have though. Here is a scale to show the chances of using anti-form depending on how many Anti-points you have:
Counter
(cannot go below 0)Percent chance00%1-410%5-925%10+40%

(Semsemsem3) not to be rude but i already knew how to get to use anti form and this is incorect. aniti form is based on how many times u are hit in a form. however u were right about final form decreaseing points.if u do not think this is correct try testing it and you will see.