Spade Panel

Spade Panels, also known as Flip Games or Spade Houses, are small panels on overworld maps in Super Mario Bros. 3 that can be used to earn extra lives for Mario or Luigi. Once they enter one, the player can play a minigame hosted by a Toad. Its gameplay is similar to that of a slot machine, in which parts of pictures slide past on panels and the player must line up three of the same panels to make a picture and win extra 1-Ups. There are Mushroom, Flower, and Star icons, granting two, three, and five extra lives when lined up as the Mushroom Picture, the Flower Picture,  and the Star Picture,  respectively, similar to the goal at the end of each level. If any of the panels are mismatched, no extra lives are awarded.

In Super Mario Advance 4: Super Mario Bros. 3, if a Spade Panel is matched up correctly, further Spade Panels will change to . The Stars are replaced by Leaf icons that give seven extra lives. Clearing one of these turns further Heart Panels into , and the Super Leaves change to "3" icons that reward 10 extra lives. Clearing a Club Panel turns further panels into , where only one picture can be lined up, making it impossible to lose. Earning a minimal number of lives at previous panels will result in a mushroom picture, while higher numbers yield a random picture, and gives the corresponding number of extra lives. If Mario or Luigi clears a Diamond Panel, or fails at any of the other ones, then all panels will revert to Spade Panels, restarting the process.

A special Spade Panel, the N-Mark Spade Panel, appears every 80,000 points. When it is activated, Mario or Luigi will play a card game for prizes, with a total of nine prizes per game. After the game, all prizes earned will be included in the player's inventory. Unlike with the other Spade Panel games, a player can make two mistakes during an N-Mark Spade Panel game before getting kicked out; when the next 80,000 points are achieved, they can continue the game from where they left off.

In Super Mario Maker 2, while the Spade Panel itself does not appear, its minigame reappears as part of the version 3.0.0 update in one of the Toad Houses the player can place on the world map in World Maker. They are distinguished by the Super Star on the Toad House's roof.

Trivia

 * This minigame's theme music is arranged in Super Mario RPG: Legend of the Seven Stars (for Grate Guy's Casino), Super Mario 64 DS and New Super Mario Bros. (for the minigames Wanted!, Connect the Characters, and Mario's Slides), Paper Mario: Sticker Star and Color Splash (for Snifit or Whiffit), Mario Party: Island Tour (for the minigame theme "Slowly Bubble Up"), and Super Mario Odyssey (for the slots minigame).
 * This minigame's theme music in Super Mario Bros. 3 is a looped sample from the bass-line (or pause music) from Super Mario Bros. 2's ground theme.