Can i get money from youtube tho i use in-game music?

Very often I can't get any money for my videos and since there can be severe consequences to claim right to something that you don't own I don't really want to claim it without beeing sure. You can't e-mail youtube support either so I'm not sure where to turn. I use in-game music for my videos such as the intro music and sounds from the game examples:
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In my GTA Videos i use the gta music in my intro (not the radio, the actual gta music) and i wonder if it's allowed. Should it not count as in-game sound and should it not be tolerated?
Another example is my Minecraft video:

I use the so called "Music disks" that you can find in the game It's game sound and I think I should be able to use game sound and game loading screen music in my videos for that particular game, can I or not?

Thank you
(Sorry if I'm writing bad, english is my second language and I'm also very tired right now.)

Ever since YouTube started being a little ****** about the copyright, i would recommend to down the music out. It got so strict, even when companies don't care, Google basically flags your video without the companies permission.