Sons birthday-Coronavirus help, need ideas!

Okay so my sons birthday is April 29. He will be 6. His party was planned for May 2 but with everything going on I’m probably going to postpone it. BUT I still want to celebrate with him at home with him, his little brother, myself, and my boyfriend which is a huge father figure to my two boys. So I’m just looking for fun ideas for him, of course I will make him a special breakfast and dinner. Cake and ice cream, He will get a small gift from us, and I was thinking of doing a balloon drop some how. But I want to do more, I feel so Bad he will have to wait to celebrate his birthday with the rest of the family because he was sooooo excited and he doesn’t understand why he has to wait, So I want to make it really special for him. Any game ideas? Things I can do to decorate? Etc. his party theme is Jurassic world. Thanks in advance!