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 was down to keep Marx. Not only is the boss iconic and it works great in Smash, but the character itself reappeared multiple times in Kirby(mostly spin-offs)

However, there might be a better option you know about. Keep in mind that it's also appreciated to specify the way you could adapt the boss accuretely to Smash.

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