The only Smash 4 music I'm missing is the Fire Emblem Fates ones.

Let The Battles Begin! (Final Fantasy 7)

https://www.youtube.com/watch?v=dLY3tnwEy7k

Let The Battles Begin! (Fan-made Version)

https://www.youtube.com/watch?v=8pk-03KUrC0

Fight On! (Final Fantasy VII)

https://www.youtube.com/watch?v=cCGzTCLWhXY

Victory! Cloud

https://www.youtube.com/watch?v=_aWFpC013aU

Let's Hit The Climax! (Bayonetta)

https://www.youtube.com/watch?v=WpRbIzblt3Y

One Of A Kind (Bayonetta)

https://www.youtube.com/watch?v=z9kUkFPRIwM

Riders Of The Light (Bayonetta)

https://www.youtube.com/watch?v=QblcWal7voY

Red & Black (Bayonetta)

https://www.youtube.com/watch?v=dCbQ3PWmzqI

After Burner (Climax Mix) (Bayonetta)

https://www.youtube.com/watch?v=Td-OqSPNeJc

Video Game Music Archive

Which one is your favorite?