I just realized something

http://nerdist.com/wp-content/uploads/2015/06/o-POWERPUFF-GIRLS-facebook.jpg

The only three yordles in the game all have a powerpuff girl hairstyle.

Lulu = Blossom Poppy = Bubbles Tristana = Buttercup

What's funny is that the personalities aren't all lined up.

Lulu = Blossom Poppy = Buttercup Tristana = Bubbles