There is no top person as there are many different jobs to design a video game. There are major companies though.
Microsoft - Xbox 360 Sony - Ps3 Nintendo - Wii =( You can look up game sales.
There are many companies that might be wiling to hire young games testers since they are their prime consumers. For example, the major video game companies such as EA games.
EA (Electronic Arts), Activision, Eidos Interactive, GameLoft, Konami.....
they are making a video game called cosmic destruction.
A company that is making a video game would need a knowledgeable programmer, a computer, and an idea for a fun game.
A company needs to have employees that have video game programming knowledge to make a video game.
No because it is illegal to make your own video game unless you work for (game stop ,or a video game company)
There are several companies that employ video game testers. Some of the companies do offer insurance for the testers since they are full time employees.
There are many websites and companies that can offer the video game Secret of Mana. Some of these websites and companies are GameStop, Walmart and Amazon.
Yes, You need a computer mostly for making the avatars and characters for the video game.