Like the first one, SMWW2 is a hack that aims to recreate the oldschool feel to the game. It's fairly long and somewhat nonlinear in the middle. Even though it's a "classic" hack, i think i managed to make most levels feel different from each other and often quite interesting. And the world should be fun to explore. You will probably enjoy this hack if you think you'd like something like that.
Super Mario World (U) [!].smc - SNESren 2.04
CRC32: B19ED489
MD5: CDD3C8C37322978CA8669B34BC89C804
SHA-1: 6B47BB75D16514B6A476AA0C73A683A2A4C18765
SHA-256: 0838E531FE22C077528FEBE14CB3FF7C492F1F5FA8DE354192BDFF7137C27F5B