Another Boss Battle Test

A hack heavily inspired by TsucnenT Boss Battle TesT with many custom mechanics, such as an ingame save state function, that aims to be a challenging hack that's accessible to everyone.

Versions:

Another Boss Battle Test (v1.0.1)
Another Boss Battle Test (v1.0.2)
Another Boss Battle Test (v2.0)
Another Boss Battle Test (v2.1)