Like everyone said, have lots of Small guns and Big guns, but don't forget Speech! You can access awesome parts that you would obviously not get that way *SPOILERS* (I'm not sure if the final area (with the President) explodes if you don't tell the President to self-destruct) *END OF SPOILERS*, or you could always reload when a speech fails though (which is cheating, hehe)...!
Have fun!
Random game thought :
Why is Bionic Commando Rearmed 2 getting so much hate? We finally get a real game and they're not even satisfied... I'm starting to hate the gaming community so f****** much...