Fun hack. Bumping difficulty to "hard" because the hack exceeded "normal" difficulty in multiple levels, though not by too much. I noticed a few users saying in the previous version's comments that it should be "very hard," but the difficulty never approaches that.
One minor thing you may want to fix if you update the hack is the exit count on the file select screen. Because the hack has more than 96 exits, you should make these changes to the ROM so that the exit count displays correctly at 96 exits and up.