This was a hack started in 2013 while messing around with SMILE. This hack is a balance of being authentic to the look and feel of the original, but with a new world map, new item progression, some custom code, and other, smaller changes.
Difficulty-wise, Re-imagined is a bit harder than the original mainly on the exploration front. There is also a short heat run (optional if you're good at wall-jumping) and navigating part of Maridia without Gravity. Some basic wall-jumping, bomb jumping, midair morphing and shine-sparking is required. Infinite bomb jumping, mock-ball, opening gates from the wrong side, and short charging aren't required. If you've beaten the original with 100% at least once, Re-imagined should be doable without save-states.
Some sequence breaking is possible.
Super Metroid (JU) [!].smc - GOODSNES 2.04
CRC32: D63ED5F8
MD5: 21F3E98DF4780EE1C667B84E57D88675
SHA-1: DA957F0D63D14CB441D215462904C4FA8519C613
SHA-256: 12B77C4BC9C1832CEE8881244659065EE1D84C70C3D29E6EAF92E6798CC2CA72