head to head
Killzone: Mercenary asks more than Super Mario World, and the gap is reads.

Execution · Pure Mechanics
Portable FPS gunfights resting on aim with a loadout-economy wrapper.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Killzone: Mercenary leans Execution (Pure Mechanics); Super Mario World leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Killzone: Mercenary
Handheld aim and movement still decide every firefight
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Killzone: Mercenary leans clearly harder on reads.
Killzone: Mercenary
Multiplayer rewards reading enemy rotations and habits
Super Mario World
Scripted Koopas adapt to nothing
Killzone: Mercenary leans a little harder on variance, though the gap is small.
Killzone: Mercenary
Spawns and encounters add modest unpredictability
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.
Killzone: Mercenary
Loadout economy and contract play tune the earnings loop
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.