Play the online game "Mighty Guy" by using the left and right arrow keys to move the titular character across each level while avoiding different obstacles. Some areas require you to use the down arrow key to crouch and avoid attacks or press the space bar to jump.
The premise of the game involves a child working on her math homework when she hears a cry for help from within her notebook. As such, she draws a stick figure to explore the notebook and save the person in need. At the start of the game, you enter a cityscape and see a speech bubble with the word "Help" in it on the right side of the screen. Use the right arrow key to move forward and the space bar to jump over the mice scurrying along the ground. If you touch one of the mice, you lose one of your five lives and must start that level over again.
As the levels progress, you face new obstacles, both on the ground and falling from the sky. Some levels contain bounding tires that you need to either run under and duck to avoid, while others contain people throwing bottles out of windows. The challenges and obstacles increase with each level until you reach the end and rescue the person crying for help.