851
In Super Mario 64, there is a corner in Shifting Sand Land where rolling into it will result in Mario rolling in place. At this point, the only options are to continue rolling indefinitely or to tilt Mario towards the quicksand to let him die.
852
853
854
855
In Level 6-Fortress 1 in Super Mario Bros. 3, if a Star is collected on the specific frame when Mario hits a coin block, Boom Boom (who is encountered in the next room) will die immediately upon seeing Mario, without even needing to be touched.
856
857
858
859
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.
860
861
862
863
864
865
866
867
868
869
870
872
873
In Super Mario World, the Switch Palace/Bonus Room music always includes the Yoshi drum track, even when Yoshi himself is not present. Below is a comparison between the used version and a hypothetical "Yoshi-less" version of this music with the Yoshi drum sound channel disabled.
874
875
Neither Super Mario Odyssey nor any of the available guides for it contain a map of the Deep Woods area in the Wooded Kingdom. I have created the world's first comprehensive map of the Deep Woods. More on the process at the Supper Mario Broth Patreon: patreon.com/posts/41149874