head to head
Super Mario World asks more than Steppy Pants, and the gap is optimization.

Execution · Pure Mechanics
A minimalist endless runner testing precise tap timing.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Steppy Pants 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.
Steppy Pants
precise tap timing for stepping rhythm
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.
Steppy Pants
no opponent, solo endless runner
Super Mario World
Scripted Koopas adapt to nothing
Steppy Pants leans a little harder on variance, though the gap is small.
Steppy Pants
randomized obstacle/terrain generation
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Super Mario World leans clearly harder on optimization.
Steppy Pants
minor route/timing pattern learning
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.