ESRB relaxes rules for trailers and demos of M-rated games
The ESRB also allows M-rated games to be promoted via demos included in other games, even if those games have a more permissive rating. This requires ESRB approval, however, and research suggesting that the two games have the same intended audience.
Other new rules include removing the mandatory 4-second ESRB logo in front of demos, as long as the rating is shown on the download page, and a removal of a restriction on placing multiple regional ratings next to each other on websites.