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
Pure point-and-shoot accuracy against memorisable scripted spawn patterns.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Ghost Squad leans Execution (Pure Mechanics); Super Mario World leans Execution (Pure Mechanics).
Ghost Squad leans a little harder on execution, though the gap is small.
Ghost Squad
Light-gun accuracy under time pressure is the whole test
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.
Ghost Squad
Terrorist spawns are scripted pop-up targets
Super Mario World
Scripted Koopas adapt to nothing
Ghost Squad leans a little harder on variance, though the gap is small.
Ghost Squad
Branching routes hide content until explored
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.
Ghost Squad
Memorising spawn patterns per route raises scores
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.