Arrow key up : Climb Up
Arrow key down : Climb Down
Arrow key right : Move Right
Arrow key left : Move Left

Space Bar (on a building) : Punch (smash Building)
Space bar (on the ground) : Pound the ground(cars, Tanks, Trucks, Ect )

Control Key : Jump

mouse over and click :Pause, Help, Music on/off, Restart

Smash All The buildings all the tanks, trains trucks, the more you smash the larger Amount of damage you do the more cash is displayed.
HULK SMASH ALL!!