How long did it take you ...

How long did it take you to learn all of the japanese (fluently) in japanese video games?

I'm pretty new at japanese. You can say I know pretty much nothing. At this rate, I doubt I'll ever actually become fluent in 10 years.

I have a game, Feel The Magic XY/XX for the Nintendo DS. It has a japanese verison. And uhm, even some experienced members here cannot translate it. It is very strange. It was very informal japanese and I guess it had alot of slang/weirdness to it (It IS a weird game..):
What's IS good is it is in hiragana only and katakan, no kanji!
Here are 2 sentences:
One is, "We're stuck on a desert island!"
Doko yau mujintou mitai!

Woa, this thread may cause rivalry LOL, just kidding. I wish I could read half the written LOL, but I'm also a very noob at japanese learning. What I know is that I will someday read them without major problems, like I actualy do with english ones now (I'm from Spain, but I can understand english games quite well I think ^^). Almost everyone in here, who want to learn japanese, will study and learn it. I wouldn't want to seem that I only study japanese to play games and watch anime, but to do some special things in my life that I plan to do in the future ^^. Everyone, enjoy studying! ^o^