There's only one way to kill Mario. You've gotta drive a wedge between the bros. Decades of jealousy from living in the shadows will drive a man insane. One brother always gets the acclaim. One brother always gets the princess.
Luigi has been teetering on the brink for some time now. He just needs one little push... and Mario won't be a problem anymore.
"The worst part about these reviews is they are [subjective]--and their scores often depend on how drunk you got the media at a Street Fighter event." — Mona Hamilton, Capcom Senior VP of Marketing
*Image indefinitely borrowed from BrainBoxLtd without his consent.