The gamerzone on it's own can be considered a logo.
I will echo what the others say, you must get rid of the parts of other's logos. You cannot use their likeness like this. And the drop shadow should also go on the text.
haha it's an xstaion! like others have said don't use other logos in your logo. sony and microsoft would not be happy i gar-on-tee! the pixelated gamerzone could work but i would drop the gradient in the text and maybe drop the bulls-eye too.