I am super happy you made this quiz. Iβve played over 500 hours of Smash Ultimate (pathetic I know) and Iβve finally found a quiz related to the Fighters that I struggled with. I got all but Wario and Sonic. Fantastic job! As for the bonus, my guess is either Mr. Game & Watch or Cloud because both fighters only have 2 music tracks for their respective series.
I glad you found the quiz challenging! My only regret is that there is no garlic emoji for Wario :( Also, 500 hours is completely normal! Iβm pretty sure that if you counted all my hours on my own Switch and my friendβs then it would add up to 500-ish.