a) I played it obsessively with my brother in all combinations, giggling and swearing at the same time. Shofixti vs Shofixti or the Spathi farting and being chicken is awesome
b) It was one of my first programming projects for just myself. I wrote a random team generator and am still quite proud of it.
c) I got my children to play it on the modern laptop and they loved the Melee just as much as me and my brother did
The sense of humor, the complexity of the storyline, all the easter eggs, it is just a wonderful game.