Mario 64 Seasons is another example of a fan-made concept that doesn't have an official game history. Its gameplay likely involves changing seasonal elements influencing levels and gameplay. It possibly involves a similar 3D platforming style as the original Super Mario 64 but with seasonal shifts altering level design, challenges, or enemy types.  Its hypothetical development could be attributed to fans or ROM hackers using Super Mario 64 as their base, showcasing their creative modification and level design skills.

Mario 64 Seasons

Mario & Flybro: The Mysterious Mansion