Introduction: This game is ar virtual reality game. Players can enter the game on the way of commuting or going out to choose the way of environmental protection travel, and turn on the mobile phone camera on the way of travel to identify the small monsters in the surrounding air to fight with them. In this way, players can accumulate rewards in the game through "green travel", which is intended to guide users' green travel and environmental protection behavior in the way of "behavior design. Game Purpose: Through the various mechanisms in our game, such as: social, incentive, gameplay, responsibility goals and other means to link offline environmental behavior and game together, to help users establish good environmental behavior. How to reach: The acceleration sensor is used to obtain the player's movement speed to determine the travel mode (you can also manually choose to make up for the judgment error), and the duration of the player's green travel is converted into rewards (including driving a private car, as long as the duration of this week is reduced compared with last week, the duration of the difference will also be converted into rewards). The rewards can be used to upgrade equipment, participate in ranking, exchange prizes, purchase consumables for social activities, etc, incentives for players to keep behavior rewarded. At the same time, you will meet all kinds of small monsters related to smog on the road, reflecting the game, and you will also get rewards for repel the small monsters. Among them, various mechanisms restrict each other. For example, there is only a certain limit to get rewards for fighting monsters, and you cannot win prizes without restriction. Otherwise, you will lose the original purpose of green travel. Game background: In 2050, the air pollution will become more and more serious, and the climate on the surface will become worse and worse. People will have to move to the bottom to live. However, they will have to return to the surface to face the slow and endless carcinogenic smog. A group of residents in the smog capital have launched a green travel campaign. While traveling for environmental protection, they will fight against the smog monster. Air purification has become the responsibility and obligation of every citizen.