Will Pocket Monsters hire me?

I think you have it backwards. You would need to learn a skill, like coding, so that a company like Game Freak or TPC would hire you.

While Pokémon is an international franchise and there are undoubtedly jobs all over the world in a variety of different languages, the games are primarily developed in and designed for Japan, so if you actually want to work on the games you would probably need to be prepared to relocate to and work in Japan.

But you need to think: why would they hire you when they can hire Japanese natives with the same skills that would have no potential visa, language or integration issues?

You either need to raise your Japanese skills to those of a native speaker, or offer skills that might be unique or difficult to find amongst the people already living in Japan, so much that limited or no Japanese skills are worth the trade off.

And while it's good to have goals and dreams, and I do not mean to rain on your parade, you maybe need to temper your expectations.

What do you hope to accomplish? Do you think you are going to walk into Game Freak's offices day one as a junior hire and "fix the games"? Do you think they will make the games you want, the way you want them?

You would be part of a team. You would probably be allowed to have a degree of creative input, sure, but you would not be director or lead programmer. Maybe you could work up to that one day, but that would not be your position from the start, assuming you can even get your foot in the door.

Instead, I would focus on developing the skills you need to get the type of job you want, with the potential goal of one day working on the Pokémon franchise.

You want to learn coding and do programming? That's a good start. Look into the requirements to do that job in any company, gaming or otherwise, and work towards the skills and qualifications you need to get that position.

The same applies for other fields and industries related to games development. You want to be an artist, writer, composer... look at the skills required for that type of job and work on acquiring them.

Similarly, if you actually want to come and work (and live, that's important too) in Japan, start learning Japanese.

Then, once you have acquired the skills and qualifications you need for your desired position, perhaps you can apply to Game Freak, TPC, Nintendo, etc. As one of a range of options within the industry. Even if it doesn't get you your dream job, perhaps it will get you something similar, or potentially even better.

I wouldn't hang my hat on "Game Freak or bust". Position yourself so that it is a potential option, not your only option.