H.W.
J.,
Were I in your shoes, I might have called a specialist a while ago. I don't know if you have talked to your pediatrician about your son's behavior, but to me this would be a big warning flag to get my son some professional attention. I would get a referral to a behavioral therapist for my child if I was seeing this sort of rage. This sounds like he is feeling very out of control and that he is needing a lot of support right now.
I understand your confusion about his non-reactivity during the role-playing together. Please understand that he is old enough to cognitively understand the pretense of the role-playing, and the fact that you are 'playing' it is what keeps it emotionally safe for him, so if these provocations happen in real life, suddenly, then it's reasonable that you would see a reaction despite the prep. Role playing is helpful and yet, your son is needing something more.
What also needs to be said is that you cannot punish a child into being good. Taking away his pleasures isn't working because it's not a fair trade-- he's not having these outbursts for pleasure or just to be reckless, so while it was appropriate to take those privileges, this won't really get to the root of the problem. It will certainly, over time, escalate a power struggle if this is your only route. You must get them to buy into *why* learning to master their emotions and follow directions or not hurt others-- why this is good for *them*, and this is really very important. However, we are also very emotionally involved with our kids and they do tend to cause us anxiety, anger, and sometimes they really press our own buttons. So, once again, getting professional help gives us objectivity and guidance as to options.
A good professional will give you options, not force you to do anything. I have noticed in your previous posts that you have had some questions about your own attention deficit disorder. This is a very real concern to address, for both your son's and your own sake. I am not saying this to pick on you, either. Please know I've had my own challenges in recovering from and living with PTSD. Needing help can feel hard to deal with. Your writing in your last few post seems very distressed, so I hope you are finding some answers and getting started on feeling better. Please find good resources for your son. It will be a good investment in the long run.
These moments are opportunities. Use them well.