>>36426540Well first of all that's not the only point of a good game. People loved Silent Hill and that game plays like absolute ass. Premise and atmosphere also have a lot to do with what makes a game good.
The premise of a fighting game featuring Nintendo characters is great.
The gameplay is interesting and fun because you get to use signature moves of Nintendo characters optimized for a fighting game.
You can't argue how good smash would be if it didn't have Nintendo characters because the game is built around having Nintendo characters. That is literally what makes it Super Smash Bros. in terms of gameplay and premise.