head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Pure Mechanics
A marble-rolling platformer testing precise tilt control.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Marble Mountain leans Execution (Pure Mechanics); Super Mario World leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Marble Mountain
precise tilt-control marble navigation
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Marble Mountain
no opponent, solo obstacle courses
Super Mario World
Scripted Koopas adapt to nothing
Marble Mountain leans a little harder on variance, though the gap is small.
Marble Mountain
minor randomized obstacle timing
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Super Mario World leans a little harder on optimization, though the gap is small.
Marble Mountain
route and speed optimization per level
Super Mario World
Secret exits and route knowledge add a modest solvable layer
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.