title: Is pac-man still protected by copyright?
body: <p>I am planning to write and distribute a pac-man like game. So I would like to know if It is still protected by copyright.</p>
  
  <p>Can I use the word pacman in the title? What are the limits that I will have?</p>
  
  <p>PS. I can conclude from the first answers that I can't use the name and may be a very similar art work. If I keep that in mind, will I have any trouble. And I don't want to do something unethical, is it unethical to write a pac-man like game? I see tons of them on the internet.</p>