If you have a great portfolio and experience, you don't need the Japanese language. At least, it depends on the company, but there are many non-fluent foreign workers in skilled areas like programming.
Please, nahadef, be very explicit that what you have written here is very case by case! You might want to give him high hopes (I don't know if that was your intention), but I prefer to give caution.
But, that means it'll be very hard to get a visa first to come here.
As we know, he has to get hired first, and the employer's requirements are the first step. They may or may not include a serious understanding of the J language. Once that is done, as long as he has a degree related to his proposed job, it's not all that hard for him (an American) to get the visa. I'm not sure what you meant above, though.
My J language is good, I can hold a conversation and read; Kanji is still a little hard for me though.
Not knowing you at all, Ocasio, I feel obligated to ask what you mean by "good". Have you taken a JLPT exam? The way you wrote, it could be interpreted as that you can only speak just enough to discuss minor points of the day, not work-related matters.
Moreover, you may very well be expected to attend weekly meetings where you have to understand a different form/level of the spoken language, and certainly during the week you will be exposed to a plethora of emails and office memos which will probably be all in Japanese. The language used in them is also not simple textbook stuff.
I do have a job right now as a assistant engine programmer at CryTek.
I assme that is in the U.S., right?
I apply for a Job at Sony and GungHo Online Entertainment,
Again, presumably these are in Japan...?
I wanted to go to Japanese Embassy cause I wasn't so sure which work visas I would be applying for. Also for future references if I decided to stay in Japan working on games.
So, now you realize that you have to get a job first, then apply for a visa, ok? Either find a rare employer who will hire you blindly from abroad (unless they have an overseas office), or come here as a tourist and look around (when are you hoping to start work?) but don't tell that to customs/immigration or you will be put back on the plane, or do as nahadef suggested and find some other work first to give you more than 90 days to look around. On that last point, though, it might be hard to adjust to a career like that and simultaneously look for work.
One thing I noticed in your writing is a few grammatical (verb tense) mistakes. Whether these are happening just because you are typing casually for a forum, or you really have a problem with the grammar, I don't know. But these caught my eye and will to an employer, too, especially if you are supposed to write proper English for work applications.
Once you have that degree, which will be either in teaching or in humanities, depending on your company, it's transferable into whatever other degree you want (within reason) if you get employed in a different field.
nahadef, be very careful here, too, about your advice. If Ocasio (or anyone) has a degree in the humanities, they are not likely to get a job as an engineer. The point is moot for Ocasio's specific situation since he is going to get a degree in game design, but others might misread what you wrote. Frankly, I have no idea what you mean by one type of degree being "transferable" into another degree. Could you explain?