We've had the original "Angry Birds", "Angry Birds Seasons" and now we have the third version of this popular game, "Angry Birds Rio". This time the birds are not being flung at their age old nemesis, pigs. Instead they are flung at cages of captured exotic birds in an attempt to free those birds. The basic game play is the same with a slingshot where you launch various birds at their targets. All the versions I've linked to today are free. You do not have to have played a prior version in order to enjoy this version. There are paid versions available.
Angry Birds Rio for iPad Free
Angry Birds Rio for iPhone, iPad Touch, Free
Angry Birds Rio for Android