Being a billionaire industrialist/genius/futurist/weapons manufacturer/playboy/alcoholic would be enough to keep most folks busy. Tony Stark, however, is not most folks. So, he's decided to become a superhero as well.
After a morally dubious spell as a weapons designer and manufacturer, Tony went and got himself kidnapped by terrorists and was forced to build all manner of nasty stuff for them. Cheeky chap that he is, however, he opted to build a suit of mechanical armour and fight his way out of there instead. Thus, a hero is born.
Gameplay focuses squarely on Iron Man: you won't have to waste a whole lot of screen time sorting out business deals as Stark. As old Shell Head, you'll take to land and sky in your conflict with Stark's rival, Obediah Stane.
Players will be able to trudge about on foot, hover and fly outright, and the game will require that they do all three. On top of that, you'll want to make use of Iron Man's trademark repulsor rays for carving up fighter jets and tanks.
As you go, you'll be able to unlock different versions of the armour that Stark has built over the years in the comics. You'd better believe it, there's a lot of 'em...
A piece of advice, though. Don't fly weapon-equipped billion dollar armour drunk. It didn't work out so well for Tony Stark.