I'll take anything.

Be Kirby, choose an arena where there is no platforms, go onto google, find out how to Kirby drop as heavy thing, go back to game, smash down on Kirby by doing the heavy drop thing, because that does some decent damage and you can't take damage in that form.

Thanks everyone

Mega man Is Really OP when you know how to use him. Joker is a DLC, but really good. Sonic is the fastest in the game, but his final smash isnt that powerful. Kirby is very OP as well. You can suck in other characters, and when you crouch (Or B IDR) and use an ablity from the character you ate. King DeDeDee and Bowser are op because they are heavy characters, but king dededees jump smash goes up and then falls right down.

learn their moves, use a variety of moves

snake is one of the best players in the game

use kirby he is op

I use Kirby all the time. He is SO OP!!!!!!