The Humans is to bring awareness of overpopulation and other environmental issues to the public. The Flash game starts with loading page.

This is the main logo that comes after loading page. After main logo, it goes to the introduction and explanation of overpopulation issue before starting the first mission.

In the first mission, players are asked to match the haze mask to the face with a time given to avoid air pollution as shown below. 

In the second mission, players are required to collect all natural resources and key with a time given to avoid depletion of the resources.

In the third mission, players are required to kill all people by shooting them with a given time in order to avoid overpopulation on earth. 

After accomplishing all the missions, players will be awarded.

Then, it shows players some real solutions to overpopulation issue.

Before ending, it will come to the credits page.