Minors who play mobile games can generally be refunded, and their guardians can deny the civil legal acts made by people with limited capacity for civil conduct. China's Civil Law stipulates that minors over the age of eight are persons with limited capacity for civil conduct, and the implementation of civil legal acts is represented by their legal representatives or recognized and ratified by their legal representatives.

Legal objectivity:

People's Republic of China (PRC) Civil Code

Article 19

Minors over the age of eight are persons with limited capacity for civil conduct, and the implementation of civil legal acts is represented by their legal representatives or recognized and ratified by their legal representatives;

However, civil legal acts that are purely beneficial or suitable for their age and intelligence can be implemented independently.