This guy stole someones idea, and made an exact replica of it. What he did is downright un-American. This country was founded on the principle that nobody should be allowed to reap the benefits of my hard work without my permission. If I work hard enough and create something new and original, I should be able to benefit from it for as long as people are willing to pay for my idea, and the time frame should not be cut short because someone decided to give away my art for free.
I've heard too many times, "information wants to be free", and "copyrights/patents stifle creativity". No, copyrights and patents encourage creativity. Freedom of information encourages poverty for anyone with creative aspirations. It doesn't cost an artist anything to have his music distributed over bit torrent, but guess what? It does cost him money and time to make that music. The fact is, most of your favorite songs, games, books, movies, and even software would not have been created if not for IP laws. If it wasn't for the rights Namco is choosing to exercise in this situation, games like pac man wouldn't even exist. The people who spend thousands of hours creating them would be working at a McDonald's trying desperately to support their families. They would not have the time to create the art that you enjoy so thoroughly.
If the creators of Pacman want to relinquish their rights to allow people greater access to their creation, I would greatly admire them for it. On the other hand, if they decide that they want to exercise their rights to the greatest extent of the law, I don't believe that I or anyone else has the right to question their decision. For all I know their retirement fund tanked, and they're living off of pacman royalties. Do I feel sorry for the guy that wasted his time replicating their work? Not really, he should have asked for their permission first. Do I wish that I could pacman on my android phone? Yes, but that is not my decision to make.
Now, aside from the moral issues, this guy just wasn't very smart. There are plenty of scavenger companies out there that make a lot of money my cloning other people's ideas, and my opinion of them aside, at least they're smart enough to make it appear that they had a unique idea. I mean:
1. Super *Pac*
2. Character named Pacman
3. Identical monsters
4. Identical layout.
5. Identical main character
6. Identical gameplay
7. DIRECT reference to the original work
This guy was asking for a lawsuit, and if he is reading this, my (non-lawyer) advice is: play dead and cross your fingers that they lose their appetite. If I were you, I would consult a lawyer ASAP to figure out how to protect myself from further legal action.