I'm gonna re-draw this later.

This is where Sky REALLY starts to hulk out. (And fluff out)
In stage 2, she clocks over 12 ft tall. gets MASSIVE claws and her fur turns red. Her eyes glow and her teeth enlarged.
Fortunately she's hasn't cause any damage in this state before.
Another good thing is that her hissy fits don't last long.

At least when she calms down she'll be SUPER soft.
You can hug her to calm her down if you're brave enough.