head to head
Super Mario World asks more than Gangster Town, and the gap is optimization.

Execution · Pure Mechanics
A light-gun shooting gallery testing aim and reaction speed.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Gangster Town leans Execution (Pure Mechanics); Super Mario World leans Execution (Pure Mechanics).
Gangster Town leans a little harder on execution, though the gap is small.
Gangster Town
Aiming and fast shooting at targets decides everything
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.
Gangster Town
Enemies pop up on scripted cues, not adapting
Super Mario World
Scripted Koopas adapt to nothing
Gangster Town leans a little harder on variance, though the gap is small.
Gangster Town
Enemy appearance timing adds minor surprise
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Super Mario World leans clearly harder on optimization.
Gangster Town
Little to solve beyond shooting accurately
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.