Super Mario Wonder

Super Mario Wonder builds each level around a single Wonder Effect that temporarily rewrites its rules midway through, pipes come alive, gravity flips, enemies multiply, which means the platforming skills a level opens with often stop applying by the time it ends.

Because a Wonder Effect can trigger mid-jump or mid-run without warning, staying adaptable rather than committing to a fixed route through a level tends to handle the sudden rule change better than a memorized, rigid path. Hidden secrets are frequently tied to exploring during a Wonder Effect specifically, so revisiting a cleared level once its effect is understood often reveals more than a first straightforward run through it. Super Mario Bros is the original 1985 platformer this entire series' run-and-jump foundation traces back to.