For those who are unaware, a main is the character that you like using the most.
You MAINly use them. Kirby is the best character in Smash Bros.
If you don't already know, Kirby is the little pink guy that you get when you
first start the game. Most people that play smash make the mistake of not using
kirby because he's one of the first 8 unlocked fighters. However, his abilities
put him easily high up on the list of best mains. He's a light character so he
moves quick, he has 5 midair jumps, he has an ability to turn into something
heavy which hurts anything below him when he smashes into them and he can
untransform quickly. He also has a sword slash that can attack anemies
from above and below. He is a small character with a small hitbox, his
height is supposed to be 8 inches from other games but in smash bros
he's bigger so he doesn't let him has too much of an advantage.