Tip: Don't edit the 8x8 tile of the upper right hand corner of the sideways walking Koopa Troopa in GFX01 (unless you want your coin sparkles to look glitchy).
If some rock mounds or trees or some other details are added to the OW's then it would help, but I think that your level designs should be good enough to still make this a good hack. I think a supporter bar is needed for this hack.
Your OW designs would suggest 6 worlds, not 4. Is it just me or have you changed it to 6 worlds?
Yeah when I said that I was planning on making this simply a 4 world hack but then I later added an ice area to world 2 so it ended up taking up two submaps and then I later decided to add a special world so now it uses 6 submaps instead of only 4 like I had originally planned.
