The article states that this game marks the first time Luigi is depicted as taller and thinner than Mario. I've heard the claim elsewhere as well.
But it seems like artwork for The Lost Levels, which came out two years beforehand, includes a tall and thin Luigi.
See this comparison of the brothers.
Banon (talk · edits) 06:30, 30 December 2015 (EST)
- Are you sure that's a 1986-authentic Luigi and not just All-Stars/DX-version artwork? Cdaveedski (talk) 21:00, 30 December 2015 (EST)