They obvi have nothing better to do. They're protesting a 20 year old video game that depicts two plumbers who have somehow opened portals through other worlds through enormous green pipes and happen to wear a bear suit (I forget what the bear suit did) and a raccoon suit.
They ran around and collected floating coins that were as big as they were all in a quest to save some dumb princess from getting kidnapped, but she was perpetually getting kidnapped.
So no, PETA has nothing better to do. They've officially left the plantation. They are no longer functioning in reality and have entered the world of Capcom.