Editing Spade Panel

'''Spade Panels''',<ref name="smasmanual">''Super Mario All-Stars'' instruction booklet, pages 31&ndash;32</ref><ref name="smb3manual">''Super Mario Bros. 3'' English instruction booklet, page 21</ref> also known as '''Flip Games'''<ref>''Super Mario Advance 4: Super Mario Bros. 3'' Player's Guide, page 18</ref> or '''Spade Houses''',<ref>''Super Mario Advance 4: Super Mario Bros. 3'' Prima's Official Strategy Guide back cover</ref> are small [[panel (Super Mario Bros. 3)|panel]]s on overworld maps in ''[[Super Mario Bros. 3]]'' that can be used to earn [[Extra life|extra lives]] for [[Mario]] or [[Luigi]]. Once the player enters one, they can play a [[minigame]] hosted by a [[Toad (species)|Toad]]. Its gameplay is similar to that of a slot machine, in which parts of pictures slide past on three different reels, and the player must line up three matching parts to make a picture and win extra lives. There are [[Super Mushroom|Mushroom]], [[Fire Flower|Flower]], and [[Super Star|Star]] icons on each reel, granting two, three, and five extra lives when lined up as the '''Mushroom Picture''',<ref name="smasmanual"/><ref name="smb3manual"/> the '''Flower Picture''',<ref name="smasmanual"/><ref name="smb3manual"/> and the '''Star Picture''',<ref name="smasmanual"/><ref name="smb3manual"/> respectively, similar to the [[Goal (Super Mario Bros. 3)|goal]] at the end of nearly every [[level]]. If any of the picture parts are mismatched, no extra lives are awarded. The player gets only one chance to play the minigame, after which the Spade Panel disappears.

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

In ''[[Super Mario Maker 2]]'', while the Spade Panel itself does not appear, its minigame reappears in the [[Super Mario Maker 2#World Maker|World Maker]] mode as [[Match & Win!]], which can be played in one of the [[Toad House]]s the player can place on the world map; however, this minigame does not contain any arbitrary delay, and the pictures that the reels stop on can therefore be reliably timed by the player.

During the minigame, when the player presses {{button|nes|A}} to stop one of the reels, a random number generator is used to add an arbitrary amount of delay before the reel starts to slow down and stop on a certain picture. The delay times for all reels are randomized during the introductory cutscene, and the delay of the first reel continues to be randomized until the player stops the reel; however, the delays of the second and third reels are fixed when the player leaves the cutscene and the reels start spinning.<ref name=RGMechEx>Retro Game Mechanics Explained (October 7, 2023). [https://www.youtube.com/watch?v=QGeLzCmUDDk SMB3 Roulette & Card Matching Games Explained]. ''YouTube''. Retrieved December 26, 2023.</ref>

The following table shows the minimum and maximum possible delay times for each reel, along with the range between the maximum and minimum delay. The column labeled "Timing window" denotes the number of frames during which a certain picture can be obtained if the reel starts slowing down immediately, i.e. 0 delay frames are added.<ref name=RGMechEx/>

The image below visualizes these values; the delay range is highlighted in blue, and the timing window with 0 delay frames is highlighted in red.

The delay range for the first reel (16 frames) is 3 frames less than its timing window (19 frames), meaning that for each full revolution of the reels, the player has a window of 3 frames to press {{button|nes|A}} to guarantee that the reel stops on a desired picture, regardless of any added delay. However, the delay range for the second and third reels (32 and 64 frames, respectively) are larger than their timing windows (19 and 16 frames, respectively), meaning that the delay can potentially cause the reel to skip over the entire timing window for a certain picture; therefore, it is impossible for the player to guarantee that the second and third reels will stop on a desired picture. For the third reel, the minimum delay of 64 frames is equivalent to one full revolution of the reel, and the maximum delay of 127 frames is equivalent to two full revolutions, essentially meaning that the third reel can start slowing down anywhere on the reel and stop on any of the pictures, regardless of when the player presses {{button|nes|A}}. Thus, the outcome of the game cannot be determined by the player whatsoever.

|Jap=スペードパネル<ref>''Super Mario Bros. 3'' Japanese instruction booklet, page 19.</ref>

|Ita=Quadro del segno di picche<ref>''[[Super Mario Bros. 3]]'' Italian manual, pag. 16</ref><br>Pannello picche<ref>''[[Super Mario All-Stars]] 25th Anniversary Edition'' Italian manual, pag. 17</ref><br>Asso di picche<ref>''[[Super Mario Bros. 3]]'' (3DS - Virtual Console) Italian e-manual, pag. 10</ref>

|ItaM=Spade symbol square<br>Spade panel<br>Ace of Spade