alright, here's my idea. for the first dungeon, you use simple Z1 tiles for everything, then slowly improve the graphics for each dungeon. like, the second level has more detail on the walls, and more tiles, the third has all the tiles you could possibly want for dungeon, and the fourth has some extra colors, fifth has more, sixth has the most you can get, seventh uses 256 color mode, not sure about eighth, but the final dungeon would combine ALL the tiles previously used in the other dungeons
[Edit] I'm a dolt. forgot that the first dungeon is already done, which sort of defeats the idea of this entire suggestion
