Super Smash Bros. Melee/Peach

Float Canceling
While L-canceling is usually best to shorten the delay after performing an air attack, peach has the ability to Float Cancel her aerial’s. Float canceling is a pretty simple technique, basically do an attack while floating, when you hit the ground after the attack you will have NO recovery time. See, simple.

Quick Float
Hold down any time during a jump or double jump (holding X or Y) to automatically start floating at that altitude, you can even hold down on the ground and press X or Y to float just above the ground.

Effective Kill
Using down and A at the beginning will most likely get you 8 extremely powerful hits and if opponent is in mid-air at that time use a charge up and A attack repeatedly will give you the life advantage.