Super Mario World: The Second Reality Project Reloaded

Super Mario World: The Second Reality Project Reloaded is a ROM hack of the original Super Mario World, and a remake of an earlier ROM hack. Featuring a new overworld loosely based on that of the original SMW, new levels, new music, and a hidden secret world not found in the original ROM hack. The hack gets difficult towards the end of the game.

IPS patch
The IPS patch can be downloaded from either FPI Productions or SMW Central. It would then need to be applied to a clean Super Mario World ROM.