Shigeru Miyamoto
Miyamoto and Nintendo do not use focus groups. Instead, Miyamoto figures out if a game is fun by playing it himself. He says that if he enjoys it, others will too. He uses how the Pokémon series was created as an example. He said "And that's the point – Not to make something sell, something very popular, but to love something, and make something that we creators can love. It's the most important feeling we should have when we make games."