SixPathsOfHate
Make triple skulls input BDF or DF Hold F
I think what they mean by them being similar is that variations provided a different flavor of the character but still had the identity of the character in tact.This doesn't make sense. Variations were mainly based around splitting a single character's legacy/new moveset into discrete groupings, with the option to only use a few at a time. Sonya cannot use Jacqui's leap.
Kameos are universal to the entire cast, and each character retains their entire legacy moveset without dividing it up. If you want to use an ability, you use it, regardless of what character you pick, and it's tied to its own meter. It will not replace any of the default moves that were designed specifically for your character. Adding a new Kameo to the cast adds the moves for everyone.
They could not be more different from each other.
Kameos do something similar because you are still playing your character but will most likely play them differently based on your kameo [variation]
The fact other characters can use this is not relevant as the point is kameos [variations] will be different for everyone.
Ashrah playing with Frost will be different than Havik playing with Frost
Frost is the variation of Ashrah and Havik. They would play differently based on the kameo [variation] because they are different characters and they use kaemos differently.