I thought 96C was just 96 with a extra hard back book?
No, KoF '96 Collection is a demo disc with information and character art etc. The full game is not on the disc.
It's a bit like a promo item.
Cant say I have ever tried these so can not confirm but:
ALTERNATE CHARACTER COLORS
When selecting your character press the D button instead of A.
FIGHT AS CHIZURU KAGURA AND GOENITZ
Hold Start, then press Up + B, Right + C, Left + A, Down + D. Chizuru Kagura will be selectable to the right of Clark and Goenitz will be to the left of Athena.
BONUS CHARACTERS
In order to gain access to bonus characters in the game, hold the START button while choosing your character.