Nintendo have never treated Luigi the way he deserves, always coming in second place behind Mario, and more recently falling even further behind - all the way behind Wario and Waluigi.
Case in point, take a look at the Mario Party 9 box art, which is also a little game I like to call "Spot the Luigi!":
Is this really the treatment that Luigi deserves? Being left out on the Japanese Boxart and then just photoshopped into the background of the US Boxart? Is it? IS IT NINTENDO?!
Poor Luigi - the forgotten hero of Nintendo, even forgotten by his own abusive parent - Nintendo.