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

Execution · Pure Mechanics
A reflex-driven isometric runner about dodging hazards at high speed.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
SegaSonic the Hedgehog leans Execution (Pure Mechanics); Super Mario World leans Execution (Pure Mechanics).
SegaSonic the Hedgehog leans a little harder on execution, though the gap is small.
SegaSonic the Hedgehog
Trackball reflexes dodging hazards at speed decide survival
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.
SegaSonic the Hedgehog
No opponent, only environmental traps
Super Mario World
Scripted Koopas adapt to nothing
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
SegaSonic the Hedgehog
Hazards are fixed once a course is learned
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
SegaSonic the Hedgehog leans a little harder on optimization, though the gap is small.
SegaSonic the Hedgehog
Memorizing the optimal route through each stage helps
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.