If I remember correctly, STARSW is collection of sprites and ASM stuff made by Carol(?), unless I'm totally on crack or something. I don't know if THAT sprite is in there, but I know there's stuff like an SMB1 flagpole in it. I haven't enough ASM knowledge to work most of the stuff in the file, plus it's almost all in Japanese.
That's right. I did notice a lot of the tiles are flipped or mirrored, so I don't think I'll have any trouble fitting it into a single bank. There is one issue. Those long pipe looking bars that run horizontally use a different palette than the rest of the background. Do you want me to tweak it so you only need 1 palette for the whole BG?
Also, it won't be ready until tomorrow night because of Valentine's Day.
Off topic, but I baked my girl a peanut butter cheesecake and it took waaay longer than I thought it would.
I had the same problem just last week. It was that I had forgotten to delete the old tiles in the event editor mode. So if you go back and check that all the old tiles in the 8x8/16x16 (don't remember which) EVENT editor mode are removed that should solve that problem.
If you deleted everything in both event editors, try activating the events passed to see if anything else pops up that was hidden before. Delete anything that shows up and if that doesn't work then I'm out of ideas.