MiniBX was meant to be a minimalist hack of the rules for B/X, with lots of additional design touches.
Turns out it became a disruption, subversion or even a profanity against D&D B/X. An attempt to make this game our own.
We are therefore facing a game with no No ability scores, no abilities or skill checks; just modifiers, that subvert HP tracking and combat into something brutal and fast. Also there are free form spell rules, which can be adapted immediately to any B/X based game. This all results in a classic B/X experience, with more fluid and modular rules.