Many games contain an "M" for mature rating, meaning it's only appropriate for people 17 years and older. The new game based on the movie Scarface contains that label that also requires clerks to ask for ID.
The National Institute for Media and Family gave retailer Wal-Mart top marks because its cash registers remind clerks to ask for I.
D. when an "M"-rated game is scanned.
The new Nintendo, Sony and Microsoft consoles also received a nod from the group for the parental controls installed inside their new devices.
Aggression on screen also leads to aggression in young players, the study says.
Too much time playing video games not only exposes your child to possible violence, it also impacts their performance in class, according to the study. It found the time spent playing directly correlates with lower grades at school.
To read the report, .