The pizza boxes with the slogan “Since 1983″ in the Luigi’s Mansion 3 trailer are a reference to Luigi’s first video game appearance in Mario Bros.*, released 1983. *The Mario Bros. arcade is most commonly cited as Luigi’s first appearance, but the Mario Bros. Game & Watch came out slightly earlier. Both were released in 1983. Main Blog | Twitter | Patreon | Store | Source
Mario and his friends having a picnic while Bowser is stuck in a tree, from the Japanese “Super Mario Story Quiz Picture Book 3: Mario’s Picnic”. Main Blog | Twitter | Patreon | Store | Source: see bottom of image
In all versions of Super Mario Bros. 3, you can perform a kind of “double jump” with Kuribo’s Shoe by simply walking off a ledge and pressing the jump button in midair.