this mod is really scuffed.

Some things to note:
your game will crash at some point, turns out the game doesn't like when you forcebly replace the player character with a boss
do backup your save file, just to be safe
some maps won't load with this mod on (noteably The Old South, SBC Abend and the Bridge of Hope, depends on the boss you're using, Mighty Chariot worked with these said maps)
if you die you'll get softlocked (the stats and HP are still your character's, so you can still be kiled quite easily, i suggest you just cheat in a accessory with infinite max HP)
Special Challenge Nifta may be quite broken
this only works on single player


to install this, download the mod and pick ONLY ONE of the boss PAK and SIG file
i made some additions to the boss attacks to make them more playable, projectile attacks won't track enemies when you play as the boss so they will fire at a fixed position
the normal AI controlled version of the boss you picked will probably one shot you if you try to fight it

controls are on a .txt file in the folder of the boss you want to control (just press the equivalent of the button prompts on keyboard)