Nero has the devil bringer ability, this allows him to grapple onto enemies, pull them away, launch them, and bring them closer. He says, the devil bringer + devil attacks + use of guns and weapons in combination of themselves will bring unparralled levels of combat to the PS3.
+ The game uses shaders, self-shadowing, and various other graphical tricks with full 4X anti-aliasing at 60 fps.
+ Gameinformer says they witnessed one cutscene in which Nero and Dante confronted each other, the article says (roughly) "expect all the acrobotic, gun toting / sword wielding martial art goodness you can think of."
+Kobayashi also said Nero's weapon works in a special way. Very much like a motorcycle (how you can rev the engine etc.) the Red-Queen's handle is like that of a motorcylce, he says it's a surprise on how this affects combat with the main blade so look foward to testing it out at TGS!
