What is greg heffleys favorite video game?

Greg Heffley's favorite video game is never explicitly stated in the "Diary of a Wimpy Kid" series. However, we do know that he enjoys video games, particularly ones with violence and action.

In "Diary of a Wimpy Kid: Rodrick Rules", Greg mentions playing a game called "Slugfest" which involves fighting and beating up other players.

While "Slugfest" is not explicitly stated as his absolute favorite, it gives us an insight into the type of games he enjoys. He also enjoys playing "Cheeseburger" with his friend Rowley in "Diary of a Wimpy Kid: The Last Straw".

So, although we don't know his absolute favorite, Greg seems to be drawn to action-packed and competitive games.