Ok, here is the updated version. I redid all the text, edited the Nintendo logo, and redid the image layout (though its still pretty much the same):
Its only on black for posting here. The actual image has the black as transparent for printing on black shirts, which I assume is what people would want it printed on. The place I'm gonna upload it to also does a lot of other things like mugs, stickers, mouse pads, etc so I could put it on a bunch of things if I wanted to.