If you are a falco player such as me you can play better with falco using his advance technique moves such as wavebouncing L-cancel moves and also wavedashing and much more let me explain.

Wavedash-simply tap the jump button and press down to quickly fall.

L-Cancel-this is a move only falco and snake has while running press the c stick in which ever direction ur going then press the c stick up very important that you hit the opponent to complete this.

ChainGrabing-grab someone then press down to shoot while on ground then quickly run over and grab the enemy again. you can do this trick to defeat fast fighters.

Also falco is one of the best brawlers so if u predict where your opponent is going if hes/her is to fast falco foward smash has the wind that can hit the oppenent. i hope these techniques has helped.