Hasbro paid for those rights so you pay Hasbro to use them or you spin a different story to sell your own project. This is what I was trying to explain: the moral right is not of these people, even if they worked on the project 15 years ago. I worked for a lot of projects in my life, but since I was an employee, I do not own them.
Yes, but you can put them on your resume when you look for new work.