I did play every hack in my mini map set, and a bunch more. In fact I've played through about 75% of them now and dipped my feet into all but seven. ALL hacks -ALL- require stunts you would never use in Super Metroid. You more or less live by wall jumping and mid air morph ball.
Most hacks are minor mods with about double difficulty. About 10% of hacks are brand new fun games. About 10% of hacks are unplayable or incomplete glam hacks. Another 10% are unbeatable torture level difficulty hacks.
Glitches aren't that frequent but when they do come up about half of them break the game entirely. There's a lot of design flaw too. Necessary items can be too well hidden. Bad room order, sticky spots, flawed balance or no balance, silly graphics, and worst of all way too many life force doors.
Almost all hacks fail to dish up the kind environment SM Samus fits comfortably into. It's almost as if every hack requires Spider Ball and never gives it too you. Each hack seems to be better suited for some other platform game character who never shows up. Still it's hard to wreck Super Metroid completely so I never stopped playing even when things got annoying.
As for my recommendations:
Eris - New planet, new everything
Oxide - like a strange Metroid based dream
Digital Cube - A fun puzzle
Phazon - play as Dark Samus
Ice Metal - SM meets Paladins Quest
Zero Mission - SM rebuilt into Zero Mission
Airy - Zebes yet not Zebes
Exercise - smooth outside the box design
Pantheon - the right way to rearrange Zebes
Stardust - short and sweet
