Duck Hunt looks like they'll have probably one of the nastiest possible edgeguarding games seen yet, without ever having to properly leave the stage themselves. I'm not sure how fun that's going to be to fight against specifically, but I love how the bouncing can works in action.
As they do represent one of my very, very first forays into gaming (even if I never played another game in the Lightgun series), I will absolutely be giving them a couple good plays. Wario is my all-time favorite Nintendo character, but these two will be hilarious fun to play. (Except for people who are off the stage. They will not have much fun. That is probably what the laugh taunt is for.)