These guys make me lose a lot I need tips on how to beat their ***.
Little Mac Players - Seriously i can't win against these guys.
Spammers - Like Samus spamming here special.... Tips on how to teach them a lesson?
Let's see uuh...shield, shield, shield, and I think shield. Then punish.
But in all seriousness, this is the only advice I can give you:
If the little mac is aggressive (they usually are), like running up and dash attacking you, shield and punish it. He might end up behind you after the dash attack, SO BE WARY OF THIS! Little Mac players make a lot of mistakes. It's a lot easier for me though because I main Greninja, who completely destroys Mac off-stage. <3 #UpSpecialEdgeGuardingOP
As for spammers, approach with shield, or throw your own projectiles. If they like to camp on one side of the stage, and roll as soon as you approach them, then run up, shield, and wait for the roll, then dash back and attack/grab them.
Just learn how to approach.