I'm really sick of these ridiculous and sarcastic responses to people who want Melee physics. The reason why is that as soon as someone hears Melee they get some negative stigma about it; I believe it is because they really don't know anything about Melee Physics besides wavedashing. The Melee physics engine consisted of:
1. Momentum Transfer: Any momentum gained by movement on the ground or air is carried over when you go ground-to-air and vis versa. When you run and jump, the momentum stays with you. When you airdodge into the ground, the momentum carries you over. This is what made wavedashing possible. In SSB64 and Brawl running did not allow you to carry your momentum over. In Brawl this created limited approach capability and just did really make sense. If I see Sonic run then jump he should fly, not cancel all of his momentum with a barely passable leap.
1. Variable shielding: Depending on how much pressure you applied to R or L triggers (Or press Z) the shield in Melee would either be compact or large and transparent. The regular shield was good for taking solid hits while the larger shield was good for preventing shield pressure since it pushes you away after hit. It was also used for some ledge grabbing tricks against certain characters when they recovered.
3. Dash Dancing: Extremely important spacing tool. It was in the original E For All demo for Brawl. Great for mind games, Tech chase, spacing, pivot grabs, whatever. I really don't need to explain this mechanic.
4. Meteor Canceling: Pressing jump at the right time after being hit by some meteor attacks allow you cancel out the downward momentum and a flash would appear. There were some true spiked that you cannon meteor cancel out of, but I feel that the meteor cancel should be universal, just harder to do at higher percentages. This would have been useful in Brawl against Falco's ridiculous chain grab to spike game.
I feel like these minor additions would be very useful to the game. All you people bashing Melee for little things don't even know what the hell you're talking about half the time. Do yourself a favor and take a trip to the Melee section once in a while. There are sticky threads that tell you all about the game in detail.