Tip: Layer 3 backgrounds and tides disappear when you hit a message box, so plan your level around that. For example, you can add a sublevel without layer 3 at the start/midpoint, and include your message there.
Your hack is very pleasant to play, graphics are beautiful and the overworld is very well thought.
I figure out to find all exits without using savestates, although some levels were very hard but always goalable. To this point, aren't there only 80 exits ? I suppose you counted the 7 info places and 4 Yoshi's corner in total, which leads to 91...
There are just a few bugs, in particular the first star warp in World 4 : you can't go back to World 4 from Star World using this warp.
this is my favorite hack that i have ever played on smwcentral.
the most important aspect of this hack was its graphics. the graphics looked very unique, and each world is filled to the brim with variety, classic nintendo-ish level design, and some neat ideas used for each level. the palettes (although some were standard) were great for the most part. the hack is one of the longest ones i have ever played. and also, no custom music leads to some even more classic super mario world experiences.
download this hack if you are looking for something very fun and long to play!