In Hulk Smash up you are the Incredible Hulk. Your goal is to try and smash up as many buildings as possible in the time allowed.
If your time runs out in Hulk Smash up, you turn back into a regular human. You must however try to casue as much damage as possible in the time allowed.
To advance to a next level you need to destroy all the buildings in a certain level. To destroy a building in Hulk Smash up you climb up the side and hit it at various levels. You need to destroy both the left and right side to make the building tumble down.
As you progress through the stages you will encounter some pesky tanks and other vehicles. If they bother you, just smash them up as well.
Use your Left and Right arrow keys to move along the city block in Hulk Smash up. Climb up and down the buildings using the Up and Down arrow keys. To jump, press the Control key and the direction key in that you want to move in. To climb, punch use the Spacebar.