Smash and Destroy non-stop action... exactly what I would expect from a HULK game.
You have to go through several training missions to get youself aquainted with the controls and story. But basically you going around destroying caravans, buildings and military personel and gaining points in order to purchase new moves throughout the game. You can play out the story which enables new areas to open up and also to fight against Bosses and new missions. But the most fun in this game is the never ending destroying of everything and everyone. Once you unlock certain moves you can pretty much have your fill running around the city blowing stuff up. As you do this you build up your adrenaline meter and you can unleash a Gamma attack which is devistating to anything in your path.
Overall the game gives you a ton of fun and lets you blow off some steam by randomly destroying everything you can. This is where the great replay value comes in.