Building comparison
head to head
Metal Slug 4vsSuper Mario World
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.
Metal Slug 4
Execution · Pure Mechanics
A run-and-gun shooter where memorizing enemy patterns and precise dodging carries survival.
Super Mario World
Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Metal Slug 4 leans Execution (Pure Mechanics); Super Mario World leans Execution (Pure Mechanics).
Metal Slug 4Super Mario World
Axis by axis
Execution8 vs 7
Metal Slug 4 leans a little harder on execution, though the gap is small.
Metal Slug 4
twitch dodging and shooting precision
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Slug 4
fixed enemy waves, no adaptation
Super Mario World
Scripted Koopas adapt to nothing
Variance1 vs 1
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Slug 4
minor drop randomness
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Optimization5 vs 4
Metal Slug 4 leans a little harder on optimization, though the gap is small.
Metal Slug 4
memorized patterns and routes 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.