You might say that a lot of these sprites look jittery and are placed carelessly, and while it does look that way, you'd be surprised...

Almost every sheet I've put on here are (or are at least as close as possible) to the CHR ROM tiles (although they may be flipped). You can see this by adding a "tile mode" or "grid mode" in a lot of pixel art programs. However, this game's sprites really aren't always crafted efficiently...there are lots of tiles with a lot of empty space, so the placing looks fine if you were to block in all the "used tiles", but it *doesn't* when you factor in what the graphics actually look like.