The fine folks over at GameTrailers have a great video preview of Bionic Commando Rearmed 2 up and it lays out almost everything you wanted to know about the game. From jumping, to upgrades to new level styles it shows most of it off. If you've been dying to really see how the game is going to play then this video is for you.
Now the real questions is if we should be excited about all these new gameplay features or really worried. Sometimes when a sequel comes out and he developer is hell bent on "improving" the game by adding more they end up destroying what made the original so good. I, however, trust GRIN as they did so incredibly well on the first one. Plus, the gave our hero a burly mustache. If anything shows good decision making its giving your game's protagonist manly facial hair.