I love Nintendo and my dream job is to work exclusively for Nintendo. But I know for a fact that getting there is beyond hard and I know for someone like me to get there needs to learn Japanese both written and spoken. But besides that, I want to know if there are foreign people that do end up working in Japan and if possible, how do they get there. Or how by any means a Western developer partners with a Japanese developer?

1. I want to know if there are foreign people that do end up working in Japan
2. and if possible, how do they get there.
3. Or how by any means a Western developer partners with a Japanese developer?

1. Absolutely, there are.
2. There are many different ways this has come about. Read http://sloperama.com/advice/lesson48.htm
3. How does a western developer partner with a western developer? And how would that be different from what you're asking about?