Have you seen the new updates? Well, I just noticed recently when I'm about to use the sticker comment that those categories for those emoticons have spaces from each other which usually does not have.
And of course, there's an arrow button available on it, so what I did, I click those arrows and have seen additional categories for those sticker comments which are mainly: Kung Fu Panda, Popeye, Madagascar, Shrek and Valiantcomics.
I was about to click that Shrek emoticons, but this one appears:
Oh oh, we needed to purchase those stuffs again that will give us another additional buzz points for several days.
Will you try to purchase one?