Princess Daisy

Mario Tennis, Super Smash Series and Mario Kart- As Peaches counterpart Daisy is used as Luigi’s love interest, and despite being well known, has never had her own game, nor has she appeared as playable in any of the main Mario games.

She purely serves as a love counterpart.

Also, we noticed that all the Smash female characters have blue eyes. Weird right? 

Image credit: http://bowonbirdo.tumblr.com/post/1117543685/daisyevolution