I actually main: pikachu/ Link Dark/ link/ toon link/ little mac(smash)/ shadow/ pichu/ ganondorf /klonoa ...and i know a garanteed way to land the ko punch(up grab and B) btw i played the game 6 years from now and if you want to main a character i recommend watching youtube to learn combos especially for characters who have similair moveset to ssbu (C.falcon/fox/falcon/banjo and kazooie/mario/luigi/...) those are easy to begun with especially C.falcon