In the bottle it appears to be a golden green bar glitter in a lime green jelly base. But tilt it to the side a bit and you can see the color change! This morning I put it on over 1 coat of AA Hassid. I did 2 coats of the Piggy and it is LOVE! It's bars and hexes of the same glitter. Depending on the angle and the lighting, this could look yellow, green, teal or a violet blue (blurple) color. It's simply stunning! So it's no surprise that I am going to post a photo overkill of it.
As if that wasn't enough to make you sick of the color already, here's a quick video of it in action :D
Another cool thing, is it's just as color changing indoors. I'm guessing since this wasn't in the regular display, that it's limited edition. So if you're into it, go look for it! This was the only bottle left at my local store and the sales associates didn't know if they'd be getting more stock, but they emphasized that they doubted they would get more. Piggy Polishes retail for $7.50 at Ulta.