A custom Count Bleck boss fight, replacing the fight in 8-4. Uses SPM Hard Mode as a base and will be added to Hard Mode permanently eventually. After May 5th you can use Flipside Mod Manager to install it, as it will be available in the manager's mod library after that point, and the save file for the custom boss fight can be downloaded from here
Thanks to SeekyCT and JohnP55 for the programming tools used to create this mod, and thanks to Alex and Tartt for letting me bounce ideas off of them!