"RED ALERT: Bad Piggies [Free / Free (HD)] is Apple's App of The Week. As such, it's now available at the price of free instead of not-free (or 99¢, if you're keeping track at home). You'll want to grab this one, too. It's an imaginative puzzle platform game that tasks users with building fantastical machines and navigating them through a physics-enabled world to an end goal. The catch is that there's tons of obstacles around, and machines need the right parts and the construction to get past them." - Harold