2176
A batch of officially licensed 1997 Donkey Kong plushes was manufactured that erroneously labeled Donkey Kong as "Yoshi".
2177
Due to being positioned in the bottom left corner of the Mario Party 10 box art, Luigi is covered up to varying degrees by rating labels in different regions. In one particular version of the game, he is covered up almost completely. Details in image.
2178
An officially licensed 2006 Buzzy Beetle keychain took liberties with its design where instead of making its beak a 3D shape, the beak was represented by a line drawn on its face, appearing similar to a smile and giving it a much more friendly appearance than usual.
2179
A 2015 commercial for McDonald's featured a variety of scenes of archenemies from popular culture getting along with each other. One of the scenes depicted Mario presenting Bowser with a Piranha Plant, which spits out fire in the shape of a heart.
2180
In New Super Mario Bros. Wii, it is possible to have 100% completion on a save file retroactively and permanently revoked, turning a perfect save file into an imperfect one forever, simply by losing 8 lives in a level. Details in image.
2181
In Paper Mario, there is a blue Toad at the Toad Town train station who tells Mario he "wants to tell him something" after Bowser is defeated. Reaching him and actually talking to him after Bowser is defeated crashes the game.
2182
The Art of Super Mario Odyssey book contains large amounts of sketches for most characters in the game, with artwork for certain characters numbering in the hundreds. Despite this, the book contains only a single drawing of Toadette, which is shown below.
2183
Normally, loading invalid Level IDs in Yoshi's Island either loads existing levels or crashes the game. However, some results are more unexpected. Loading ID 138 transports Yoshi to an empty level called "it ⬆️ with an egg", where he dies instantly.
2184
The text graphics for Super Mario World contain the word "ILLUSIYELLOW" among the alphabet tiles. This word is actually used for a clever trick that allows the game to bypass level name length limitations by squeezing in one extra character. Details in image.
2185
Promotional photo of Charles Martinet with Mario at a 2002 Australian preview event for Super Mario Sunshine.
2186
Super Princess Peach contains several test rooms in its files. One of them is the "Iggy gives Peach money" room, which consists of a cutscene of Iggy Koopa spawning some coins and Peach collecting them. Note that Iggy appears only in this room and not during actual gameplay.
2187
Waluigi-themed Valentine's Day card downloadable from Nintendo of America's official site in 2019.
2188
In Paper Mario: The Origami King, there is a room where Professor Toad tells Mario "Don't leave without me!" Contrary to expectations, using glitches to do that does not result in Professor Toad being absent - instead, the game overcompensates and spawns two Professor Toads.
2189
In Wario Land 4, the owner of the Item Shop offers Wario a smile for free. This is actually a reference to the menu of McDonald's Japan, where a smile is something one can order for 0 yen.
2190
In Yoshi's New Island, instead of having separate models or animations for facing right and left, the Gusty enemies simply have a face on both sides of their heads, resulting in a two-faced creature.
2191
According to review aggregator site Metacritic, Donkey Kong: Barrel Blast is the worst game in the greater Mario franchise, being the only game out of all of its subfranchises to have a score lower than 50 and "generally unfavorable reviews".
2192
In Super Paper Mario, it is possible for Mario to become trapped in a claustrophobic situation, squished by the ceiling in a room barely larger than himself and unable to use the door to get out. Details in image.
2193
A widespread problem with GBA ports was that the system had no backlight, resulting in dark areas needing to be brightened. The Donkey Kong Country 3 GBA prototype overcompensated for this on the Floodlit Fish level, causing the glowing fish to be blindingly bright.
2194
Paper Mario: The Thousand-Year Door contains an early graphic for the rock thrown by the audience, where it was a brick instead. This was likely changed due to the brick being more realistic than a cartoon rock, appearing more violent. Below is the brick reinserted into the game.
2195
In Mario Kart: Super Circuit, the Grand Prix rank is calculated with a complex formula that awards points for player performance. However, the formula also gives free bonus points simply for playing as certain characters, with Bowser getting the most and Yoshi getting none.
2196
A debug build of Wario Land 4 was found that allows the player to deform Wario's sprite in the intro cutscene with button inputs. Interestingly, if Wario is made too wide, the cutscene will never end, with Wide Wario simply jogging in place forever.
2197
In Mario Kart Wii, Wario's Gold Mine contains a texture that appears to be completely blank. Concealed within is a Mii head that may or may not be faceless. An analysis and mockups of what the Mii may have looked like are provided.
2198
In Super Smash Bros. for Nintendo 3DS, if Training Mode is played on the Omega form of Pac-Maze, the player may become able to see inside Yoshi's nose.
2199
Plum is a golfer from the N64 Mario Golf whose trophy appears in Super Smash Bros. Melee. For an unknown reason, whenever Plum's trophy is displayed, this pixel art of a gun is loaded into the game's memory. It only appears here and is not used by the game in any other context.
2200
As pointed out by reader @ChiefNeif, the gun is used as a reflection texture for the golf club, being so stretched out that it is not recognizable in-game. However, it is still unclear where the gun image comes from or why it was chosen for this purpose. twitter.com/ChiefNeif/stat…
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