Mario & Luigi RPG All Stars, Fantendo - Game Ideas & More

Mario & Luigi: Rivals Quest, Fantendo - Game Ideas & More, luigi's mansion 3ds rom

Mario & Luigi: Monkeying Around, Fantendo - Nintendo Fanon Wiki, FANDOM powered by Wikia

Mario & Luigi: Manga Mashup, Fantendo - Game Ideas & More

Mario & Luigi: Darkness Revealed, Fantendo - Game Ideas & More

Toad NPCs for Paper Mario: Oracles of Truth (the most notable ones, at least) (info on comments!) : r/papermario

Mallow Fantendo - Game Ideas & More+BreezeWiki

I wonder if Daisy has some connection to the Flower Kingdom : r/Mario

Super Mario and The Super Coins, Fantendo - Game Ideas & More

Mario Baseball All-Stars, Fantendo - Game Ideas & More

Mario, Luigi & Kirby, Fantendo - Game Ideas & More

Super Mario Multiverse, Fantendo - Game Ideas & More

Mario and Luigi: Partner's Across Dimensions, Fantendo - Game Ideas & More