Due to being created by the same development studio (GameFreak) and sharing a composer (Junichi Masuda), Pokémon Red and Blue appears to reference a musical theme from the Japan-only Mario & Wario for the Super Famicom, released 3 years prior.
From 0 to 11 seconds in the audio track, the Route 24/25 theme from Pokémon Red and Blue plays. After this, the Balloon Bridge (World 7) theme from Mario & Wario plays.
Main Blog | Patreon | Twitter | Bluesky | Small Findings | Source: TodoNintendoS
In Super Mario Galaxy, if Mario hovers as close as possible to the ground as Flying Mario in the Comet Observatory, it is possible for the camera to clip into him and show the inside of his head, as seen in the footage.
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In Super Mario 64, the wind in Tiny-Huge Island can be used to position Mario against the bottom of an outcropping so that Mario is continuously being blown against the rock.
While visually, this appears to be a simple animation loop with nothing changing, internally, Mario keeps building up speed. After being stuck in that spot for a long time and gaining enough speed as shown on top of the screen, Mario will finally achieve a high enough speed to clip through the rock and end up on the other side of the island.
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In Super Mario Sunshine, a well-known trick called “rocket storage” allows Mario to store and stack Rocket Nozzle charges so that all the vertical momentum generated by them is released at once whenever he walks off a ledge. By storing a few dozen Rocket Nozzle charges, Mario can be made to shoot up so high into the sky that he will be above the sun and all of Isle Delfino will be so far below him that it will no longer even be rendered.
However, the question arises as to what would happen if Mario were to reach the maximum vertical momentum possible. Each instance of rocket storage adds 170 to a specific value in memory that represents that momentum. The value is a floating-point number (a type of memory that can represent very small and very large numbers), which have a special largest value defined internally as “infinity”.
Reaching infinity momentum has a very disappointing result of Mario simply becoming stuck in mid-air with his arms out, as seen in the screenshot. This is due to his next intended position being infinitely far away, and the game having a failsafe for not putting Mario at a position infinitely many units away (though evidently not for reaching that momentum in the first place), making him stuck in place forever instead.
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In Luigi’s Mansion 2 HD, whenever Luigi releases the Gold Greenie from the locker in the Old Clockworks, a glitch may occur whereby Luigi will be pushed into the ground, where he will be trapped while continuously vibrating.
Even dying in this state and then being revived does not release Luigi from the glitch; the only way to exit this state is to walk towards the screen to make Luigi exit the floor from the side and fall to another part of the room.
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Top: during the final battle of Donkey Kong Country 3, King K. Rool (under the alias of Baron K. Roolenstein) mentions having a wife, whose pots and pans he used to make the giant robot KAOS. Whether the developers ever intended for his wife to be a real character or whether it was a throwaway joke is unknown.
Bottom: however, a 1997 Donkey Kong Country 3 manga actually makes her into a real character with an original design, who appears in a few panels.
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In Super Mario Maker, there is a bizarre discrepancy in the Mario Challenge endings on Easy Mode (where Toad tells Mario that the princess is in another castle) regarding how Toad reacts to Mario wearing the two Toad-related Mystery Mushroom costumes.
Top: when Mario appears as regular Toad, the Toad addresses him as “Captain”, seemingly believing that he is Captain Toad.
Bottom: however, when Mario actually appears as Captain Toad, the Toad no longer recognizes him as Captain Toad.
Main Blog | Patreon | Twitter | Bluesky | Small Findings | Source: MarioWikiDepths