head to head
Call of Duty: Modern Warfare asks more than Super Mario World, and the gap is reads.

Execution · Pure Mechanics
A tactical military shooter where aim against human opponents is the deciding factor.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Call of Duty: Modern Warfare leans Execution (Pure Mechanics); Super Mario World leans Execution (Pure Mechanics).
Call of Duty: Modern Warfare leans clearly harder on execution.
Call of Duty: Modern Warfare
aim and reflexes decide engagements
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Call of Duty: Modern Warfare leans clearly harder on reads.
Call of Duty: Modern Warfare
predicting human opponents' positioning
Super Mario World
Scripted Koopas adapt to nothing
Call of Duty: Modern Warfare leans a little harder on variance, though the gap is small.
Call of Duty: Modern Warfare
spawns and loadout drops vary
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Modern Warfare
loadouts and map knowledge solvable
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.