Okay, bumping this. I finally downloaded the mask and palette, and I want to know if anybody else wants to try and modify the layout or if I should try? Also, I'm having a bit of trouble with palettes, because minmay's main tileset uses the second level's palette, while sonicnathan's re-organized one is for the first level. I'm mostly just trying to figure out what tiles are needed or unneeded. After that I can stick in some destruct scenery or a textured background or something.