Discussion: most iconic boss battle in the series.

I'm currently making a project for the Smash Bros subreddit that involving giving ever series their unique boss battle, but I cannot decide this alone.

I would like to know what would you people choose for this franchise. I would also appreciate if you tell me how would you adapt the battle accurately to Smash.

It feels weird to call them "bosses" since you can actually play as them in-game most of the time, so I'll ask you people to please think about it carefully

That's all for now. Thanks for your time.