This is a better mario engine, feel free to remix (this engine supports mario 85/mario pc port), warning: it has 301 clones, go to https://turbowarp.org/1154584846?offscreen&clones=Infinity version 0.5: fixed some ceiling bugs while crouching, added collecting coins and breaking bricks and hitting at the question mark blocks!
credit to all... @griffpatch for tile scrolling mario physics guide for the help of the engine!