03-21-2015, 05:47 PM
Unfortunately this is just bad sheeting. Any sprites with anti-aliasing should be on a transparent background. There's no way to remove the background and get back the original sprites.
That said, if you're finding 2 sheets that both use black backgrounds, it might be that the game actually stores them with this background. The second sheet seems to especially suggest this. But it could also just be that the sprites only appear on a black background (since I assume both of these were hard-ripped).
It looks like the only option to get the sprites with transparency is for someone to rip them directly from the ROM. Sorry
That said, if you're finding 2 sheets that both use black backgrounds, it might be that the game actually stores them with this background. The second sheet seems to especially suggest this. But it could also just be that the sprites only appear on a black background (since I assume both of these were hard-ripped).
It looks like the only option to get the sprites with transparency is for someone to rip them directly from the ROM. Sorry