Bringing back the birdosaurus.
This is like Doc's worst nightmare. Watching himself be murdered by Radical and the Birdosaurus combined. By far his two most hated creatures in the universe.
Also, I like how Radical went old-school with his outfit. That's the Radical we remember.
Also, check out how giddy the Triceracop is.
Final note: After running a man above him with a chainsaw, I truly hope Radical has blood all the frick over him in the next panel. Because there is no darn way he is clean after that.