Here is one of the 3rd Hacks in the Le Avventure di Mario series which includes a lot of nice ASM changes such as Wall Jumping close to the Mega Man X style moves! A must look at :)
INCLUDED!!!
-Awesome ASM stuff
-Custom Sample Banks
-Awesome bosses
-Custom Graphics
-...and more!
Super Mario World (U) [!].smc - SNESren 2.04
CRC32: B19ED489
MD5: CDD3C8C37322978CA8669B34BC89C804
SHA-1: 6B47BB75D16514B6A476AA0C73A683A2A4C18765
SHA-256: 0838E531FE22C077528FEBE14CB3FF7C492F1F5FA8DE354192BDFF7137C27F5B