Many here who suggest physical punishment need to learn more about actual punishment before they can even give out their ideas on what you should do about this issue.
1. An ass whooping for punishment is never effective. It will make the individual more aggressive and you won't get the behavioral response you want after the punishment.
2. Taking away his videogames is effective, BUT...But since he has an addiction. taking the drug user's "drug" away outright will cause complications; he'll go through withdrawal; From irritability, and anxiety, to agressiveness.
3. Its not that easy for him to realize that he has a problem just by hearing you say *you got a problem.* He has to realize that by himself-that he does have a problem. Once thats accomplished, then it'll be easier for him and you to deal with the issue
4. Say what you want but he's still a child, he's still developing; he doesn't understand everything. So what you need to do, is to go by his level and what I mean by that is to get into his mind; play videogames him, make him feel comfortal around you enough to start talking. But don't go too deep. Go slow/through a couple sessions with him; people do socialize when playing games together.
This is the best advice I can give,
