About a month ago, Rovio teased that a new Bad Piggies Road Hogs update was coming soon, and Bad Piggies Road Hogs is now available for Android, iOS, PC, and Mac.
This long-awaited update add 30 fresh levels at Flight in the Night episode (24 normal mode and 6 bonus mode), new Sandbox levels, Road Hogs Mode game (at second page of the episode selection screen), and many more. There should be seven remaining hidden skulls at the 30 new levels in this update to open hidden skulls bonus level.
Rovio also add Angry Birds at this update. Hey! don't wake up Angry Birds near the sligshot, they will attack pig's vehicle, and make the vehicle wrack.