If you want, I can:
Mario Forever 6.0 introduced a new physics engine. Here is how it differs from standard Mario:
One of the biggest complaints about earlier versions was "floaty" jumping. Version 6.0 re-tuned Mario’s acceleration, friction, and jump momentum. The result is tighter control: short hops feel responsive, while running long jumps require precise timing. This update was a direct response to community feedback, and it made speedrunning Mario Forever 6.0 far more satisfying.
With official Mario games available on PC via emulators or the Super Mario Bros. 35 limited event, why play a fan game? Here are three compelling reasons: