head to head
Mark of the Ninja asks more than Metroid Fusion, and the gap is optimization.

Optimization · Pure Optimization
Solving fixed 2D guard layouts through precise sound management and upgrade-optimised routing.

Execution · Practiced Mastery
Tense, linear Metroid hunted through a station by a clone of yourself.
Mark of the Ninja leans Optimization (Pure Optimization); Metroid Fusion leans Execution (Practiced Mastery).
Metroid Fusion leans a little harder on execution, though the gap is small.
Mark of the Ninja
Precise ledge timing, sound-cone avoidance, and kill windows demand input
Metroid Fusion
demanding bosses for a 2D Metroid
Mark of the Ninja leans a little harder on reads, though the gap is small.
Mark of the Ninja
Guards investigate noise on scripted logic; no player profiling
Metroid Fusion
SA-X stalking runs on fixed scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Mark of the Ninja
Guard placements are fixed per level; no RNG disrupts routing
Metroid Fusion
first-encounter dread fades once mapped
Mark of the Ninja leans clearly harder on optimization.
Mark of the Ninja
Distraction sequencing, upgrade paths, and ghost-score routing are solvable
Metroid Fusion
guided structure still rewards route and pattern knowledge
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.