I know, I know. Pretty corny idea, and all. But studies show that birds are actually decended from dinosaurs! How cool is that? So seeing headless Angry Dinosaurs would be pretty fun and a great idea for Rovio. In fact, Birds and Dinosaurs have multiple great similarities. For one, some dinosaurs have feathers, like birds. They both lay eggs as well. And they go in multiple different colors.
So would it be awesome to see a group of furious dinos in the same exact slingshot-format? I do think so.