Uneven brick texture from Mario Kart 64. Colour palette is not an exact recreation.
Unfortunately I'm going to have to reject this. Since we can't determine which track it comes from, we can't verify it's actually from the game, and I can't let it into the section. It also has the problem of, at least for an FG, being cut off really badly.
If you figure out what track it's from, resubmit it as a misc graphics like I suggested in our PM, and we should be able to accept it.