Gold Mario, (or Silver Luigi when used by Luigi), is one of the Mario Bros.' forms which first appeared in New Super Mario Bros. 2. Their move set allows them to throw magnificent fireballs that demolish obstacles and enemies and turns them into coins. The fireballs also make Brick Blocks and Question Blocks release their items. The player loses the power-up after they finish a level or gets hurt. For Super Smash Bros. for Nintendo 3DS, when a player grabs 100 coins in the stage Golden Plains their character will turn Golden: this includes Mario himself.
Gold Mario made serval playable appearances in other games, which include Mario Golf: World Tour, Super Smash Bros. for Nintendo 3DS, Puzzle & Dragons: Super Mario Bros. Edition, Super Mario Odyssey, Mario Kart 8 Deluxe, and Mario Kart Tour.
In the first Animal Crossing game, there are two furniture items based on Mario and Luigi, the Mario Statue and the Luigi Statue. Interestingly, the Mario Statue is golden, and the Luigi Statue is silver.
To promote New Super Mario Bros. 2 in 2012, Nintendo teamed up with Oreo to create an advertisement that featured Gold Mario shooting golden Oreos.