https://www.polygon.com/2017/10/30/16562010/super-mario-odyssey-luigi-playable

Super Mario Odyssey is packed with familiar faces, old and new. But one of the franchise’s most recognizable stars goes shockingly unseen in the Nintendo Switch game, which feels like a real kick in the pants for the perennial second fiddle, Luigi.

Luigi Mario, the lankier and less-loved (sorry!) Mario brother, is absent from Super Mario Odyssey. While he’s occasionally an unlockable playable character in his older twin’s adventures — or at least some non-playable presence — that’s just not the case in the globe-trotting Switch game.