Luigi is a series of video games created by Nintendo and starring Luigi, brother of the titular character from the Mario series, making this series a spin-off of it. While Luigi is playable in all games in the Mario Bros. sub-series and some other Mario games, the first game to star Luigi in the leading role was the educational game Mario is Missing, but since it's not titled "Luigi" and it still features Mario in a supporting role, it's not considered an actual part of the Luigi series. Luigi's
Luigi's Mansion 2 HD - Super Mario Wiki, the Mario encyclopedia
New Super Luigi U - Super Mario Wiki, the Mario encyclopedia
Luigi X Mario, Crossover Wiki
Mario & Luigi (Video Game) - TV Tropes
Browser Games - Super Mario Bros. Crossover - Luigi - Super Mario Bros. Special - The Spriters Resource
Luigi, The Ultimate Crossover Universe Reboot Wiki
The Super Mario Bros. Movie (Western Animation) - TV Tropes
Crossover (fiction) - Wikipedia
List of Mario role-playing games - Wikipedia
Yo kai bros crossover, Wiki
Luigi VS Sanae (Mario VS Touhou Project) : r/DeathBattleMatchups
Luigi's Mansion (Nintendo 3DS) - Super Mario Wiki, the Mario encyclopedia
Former LBP player BoredRabbit drew an Mario & Luigi crossover with LittleBigPlantet. : r/littlebigplanet
