If they have costumes like they should've had in Melee, then Dr. Mario would be perfect.
First, let's whip it out!
Then, we thrust it!
With great force..every angle....it penetrates!
That's right, work it!
Until...with great strength...we ram it in!
And in the end...we are all satisfied...and you are set free!
*Peach, Zelda, and Samus get instaKO'd*