Here is a full ROM hack for Super Mario World where you return to the world of Sub-Con to rescue the subcons and the princess from Bowser! All the graphics and levels have been changed and the game looks a lot like the original Super Mario Bros.2 title but with enhancements.
Super Mario World (USA).sfc - NOINTRO
CRC32: B19ED489
MD5: CDD3C8C37322978CA8669B34BC89C804
SHA-1: 6B47BB75D16514B6A476AA0C73A683A2A4C18765
SHA-256: 0838E531FE22C077528FEBE14CB3FF7C492F1F5FA8DE354192BDFF7137C27F5B