Unused "Fyora's Tower" Map - Neopets: The Darkest Faerie

This map seems to connect both the portal room at the bottom and the bossfight at the top, and contains various bosses in T-poses. It seems to suggest that Act 4 may not have originally been planned to be in the game. As far as I can tell, it is only accessible via savefile hacking. The savefile can be downloaded here: https://tcrf.net/images/a/ac/NTDF_Fyoras_tower_unused_area.zip